Bizum
An article about the payment method which allows you to process payments in euros by using bank accounts in Spain and supports purchases and refunds.
Overview
Introduction
Bizum is a payment method which allows you to process payments in euros by using bank accounts in Spain. This method supports purchases and refunds.
Bizum is one of the most widely used local payment methods in Spain. It is broadly recognised by Spanish customers and, due to its convenience and efficiency, commonly used for everyday digital payments.
This article provides information about working with the Bizum method: general insights are presented in the Overview section, while information about the actions required to process payments and perform other actions is presented in the sections that follow.
General information
| Payment method type | bank payments |
|---|---|
| Payment instruments | bank accounts |
| Countries and regions | ES |
| Payment currencies | EUR |
| Currency conversion | on the Ecommpay side |
| One-time purchases | + |
| Credential-on-file purchases | – |
| Full refunds | + |
| Partial refunds | + |
| Payouts | – |
| Chargebacks | – |
| Notes | partial refunds can be initiated only 24 hours after pruchase processing |
| Onboarding and access fee | refer to your Ecommpay account manager |
Interaction diagram
Payment processing by using the Bizum method involves the merchant's web service, one of Ecommpay interfaces, the Ecommpay payment platform, and technical facilities of the Bizum service.
Operations support
Various platform interfaces can be used to process payments and perform operations using the Bizum method. Purchases can be processed by using Payment Page, Gate and Dashboard (using payment links), refunds—by using Gate and Dashboard. At the same time, regardless of the interfaces used, the following properties and limitations are applicable.
The following properties and limitations apply to the Bizum method.
| Amounts, EUR ¹ | Times ² | |||
|---|---|---|---|---|
| minimum | maximum | base | threshold | |
| Purchases | 0.05 | 1,000.00 | 2 minutes | 4 minutes |
| Refunds | – | – | – | – |
- There are daily and monthly maximum limits on total payment amounts:
- 2,000 EUR per day.
- 5,000 EUR per month.
- The base and threshold times are defined as follows:
- The base time is the average estimated time between the moment a payment is initiated in the payment platform to the moment the payment result is sent to the web service. The base time evaluation is made on the assumption of normal operation of all technical facilities and communication channels and typical customer behaviour (if any input from the customer is required). Use the base time to estimate when to react to the absence of payment result callbacks or when to check payment status (details).
- The threshold time is the maximum possible time between the moment a payment is initiated in the payment platform to the moment the web service receives the callback with the payment result. A payment is automatically assigned the
declinestatus if it wasn't processed within the threshold time. For individual customisation of the threshold time limit, contact Ecommpay technical support.
Processing scenarios
To perform a purchase by using the Bizum method, you need to display the payment instructions to the customer, while to make a refund, you need to receive a request from the customer and notify the customer about the result of the refund via the web service.
Scenarios for performing operations via the main interfaces of the payment platform correspond to those presented in the diagrams. Similarly, when additional features (such as payment links) are used, scenarios for performing operations also correspond to the specifics of those features.
Purchases by using Payment Page
General information
To process a purchase through Payment Page by using the Bizum method, the merchant's web service is required to send a request with all required parameters and signature to the Ecommpay URL and receive a callback with the result. The full sequence and special aspects of purchase processing are provided below.
- A customer initiates a purchase in the web service.
- The web service sends the request for opening Payment Page to the specified Ecommpay URL.
- The request for opening Payment Page is sent to the payment platform.
- The payment platform receives the request and validates the required parameters and signature.
- Payment Page is generated based on the project and request parameters.
- Payment Page is displayed to the customer.
- The customer selects the Bizum method.
- The request for processing the payment by using the Bizum method is received by the payment platform.
- The payment platform processes the request and sends it to the Bizum service.
- The Bizum service processes the request and sends it to the bank service.
- The request is processed on the side of the bank service.
- The information about the need to complete confirmatory steps is sent from the bank service to the Bizum service.
- The information about the need to complete confirmatory steps is sent from the Bizum service to the payment platform.
- The data for displaying the payment instructions is sent from the payment platform to Payment Page.
- The payment instructions are displayed to the customer.
- The payment platform sends a callback to the web service containing information that the customer needs to complete confirmatory steps, the status of the
saleoperation is set toawaiting customer actionuntil the customer completes all required payment steps. - The notification indicating the need to complete confirmatory steps is sent from the bank service to the customer device.
- The customer completes all required payment steps on the bank service side according to the instructions.
- The purchase is processed in the bank service.
- The result is displayed to the customer on the bank service side.
- The bank service sends a notification about the result to the Bizum service.
- The Bizum service sends a notification about the result to the payment platform.
- The payment platform sends the payment result callback to the web service.
- The payment platform sends the result information to Payment Page.
- The result information is displayed to the customer on Payment Page.
Information about the formats of requests and callbacks used for processing payments by using the Bizum method via Payment Page is presented further in this section; general information about working with the Payment Page API is presented in Interaction concepts.
Request format
There are several things you need to consider when sending purchase requests by using the Bizum method:
- The following parameters required for any payment must be specified:
project_id—project identifier obtained from Ecommpay during integrationpayment_id—payment identifier unique within the project (only letters and digits in UTF-8 encoding are allowed, without using special characters and punctuation marks);payment_currency—payment currency code in the ISO-4217 alpha-3 formatpayment_amount—payment amount in the smallest currency unitcustomer_id—customer identifier unique within the project
- The following parameters required for any payment must be specified:
project_id,payment_id,payment_currency,payment_amount,customer_id. - Additionally, it is required to specify the phone number of the customer in the
customer_phoneparameter (must be specified using the international format, including the country code). If this parameter is missing, the payment form may display an input field for entering the missing value (details are available in Submission of additional payment information). - If you need to have the payment form displayed with the Bizum method selected, set the
force_payment_methodparameter tobizum. - Additionally, any other parameters available for working with Payment Page can be used (details).
- After all target parameters are specified, generate a signature (details).
Thus, a correct request for opening the payment form using the Bizum method must contain the project identifier, basic payment information (identifier, amount, and currency code), customer information, as well as possible additional parameters.
{
"project_id": 120,
"payment_id": "580",
"payment_amount": 1000,
"payment_currency": "EUR",
"customer_id": "customer1",
"customer_phone": "+11234567889",
"signature": "kUi2x9dKHAVNU0FYldOcZzUCwX6R\/ekpZhkIQg=="
}
{
"project_id": 120,
"payment_id": "580",
"payment_amount": 1000,
"payment_currency": "EUR",
"customer_id": "customer1",
"customer_phone": "+11234567889",
"signature": "kUi2x9dKHAVNU0FYldOcZzUCwX6R\/ekpZhkIQg=="
}
Formats of intermediate callbacks containing information about the need to complete confirmatory steps
Each payment made with the Bizum method requires receiving an intermediate callback from the payment platform The format of such callbacks is standard (details), and contains information about the status of the sale operation being set to awaiting customer action until the customer completes all required payment steps.
"customer": { "id": "id213" }, "decision": { "message": "Transaction has been checked by RCS" }, "operation": { "id": 7280000015348, "type": "sale", "status": "awaiting customer action", "date": "2025-11-19T06:46:13+0000", "created_date": "2025-11-19T06:46:02+0000", "request_id": "83f70191f842cbb1-00007281", "sum_initial": { "amount": 10000, "currency": "EUR" }, "sum_converted": { "amount": 10000, "currency": "EUR" }, "code": "9999", "message": "Awaiting processing", "provider": { "id": 21624, "payment_id": "", "auth_code": "" } }, "signature": "n/UPMi4E+dqlU8bPP5dsoFyWPEufQ==" } }
Final callback format
The Bizum method uses the standard format for callbacks to deliver purchase results. For more information, see Handling callbacks (details).
The following is the example of a callback with information about a 10.00 EUR purchase made in the 442 project.
{
"project_id": 442,
"payment": {
"id": "Bizum_SALE_42:05_IIx8U",
"type": "purchase",
"status": "success",
"date": "2026-04-14T10:42:18+0000",
"method": "Bizum",
"sum": {
"amount": 1000,
"currency": "EUR"
},
"description": ""
},
"operation": {
"id": 2882000012699,
"type": "sale",
"status": "success",
"date": "2026-04-14T10:42:18+0000",
"created_date": "2026-04-14T10:42:06+0000",
"request_id": "f56c90e7c8d597fd77116313-00008328",
"sum_initial": {
"amount": 1000,
"currency": "EUR"
},
"sum_converted": {
"amount": 1000,
"currency": "EUR"
},
"code": "0",
"message": "Success",
"provider": {
"id": 21460,
"payment_id": "1747996932112",
"auth_code": ""
}
},
"signature": "6RUL34SFfqATQ3jKtzdoUfXMebAEajM5ktBziSsqaNHQQ14A=="
}
The following is the example of a callback with information about a declined purchase.
{
"sum_request": {
"amount": 150000,
"currency": "EUR"
},
"request_id": "5f15df63d-00000651",
"transaction": {
"id": 655000012161,
"date": "2026-04-14T10:42:30+0000",
"type": "purchase"
},
"payment": {
"method": "Bizum",
"date": "2026-04-14T10:42:30+0000",
"result_code": "20000",
"result_message": "General decline",
"status": "decline",
"is_new_attempts_available": false,
"attempts_timeout": 0,
"id": "Bizum_SALE_cDR7O",
"cascading_with_redirect": false,
"is_cascading": false,
"split_with_redirect": false,
"method_id": 1824,
"provider_id": 21460
},
"sum_real": {
"amount": 150000,
"currency": "EUR"
},
"rrn": "",
"company": {
"id": 1,
"title": "QA Company"
},
"general": {
"project_id": 442,
"payment_id": "Bizum_cDR7O",
"signature": "7rmkfAJsjl/kklkKMy/n1YuCiHZQwbYCfJd1vp0SjXJt7LQ=="
},
"description": "",
"operations": [
{
"id": 655000012671,
"type": "sale",
"status": "decline",
"date": "2026-04-14T10:42:30+0000",
"processing_time": null,
"request_id": "5f140c1cb3e54832a4edc7f3606420000651",
"sum": {
"amount": 150000,
"currency": "EUR"
},
"code": "20000",
"message": "General decline",
"provider": {
"id": 21460,
"payment_id": "1747996944360"
}
}
]
}
Useful links
The following articles can be useful when implementing purchases via Payment Page:
- Interaction concepts—about the interaction with the payment platform by using Payment Page.
- Signature generation and verification—about the procedure of generating and verifying signatures in requests and callbacks.
- Payment processing—about the types, processing models, and possible statuses of supported payments and operations.
- One-time one-step purchase—about processing of one-time one-step purchases with immediate debiting of funds by using Payment Page.
- One-time one-step purchase
- Handling operation processing information—about error and response codes that are used in the payment platform to record information about performing of operations.
Purchases by using Gate
General information
To process a purchase through Gate by using the Bizum method, the merchant's web service is required to do the following:
- Send a request with all the required parameters and signature to the Ecommpay URL.
- Receive an intermediate callback from the payment platform and display the payment instructions to the customer.
- Receive the final callback from the payment platform.
The full sequence and special aspects of purchase processing are provided below.
- A customer initiates a purchase by using the Bizum method in the web service.
- The web service sends the request for processing the purchase by using Gate to the specified Ecommpay URL.
- The payment platform receives the request.
- The payment platform validates the required parameters and signature in the request.
- The payment platform sends the response to the web service with information about the receipt of the request and its validity (details).
- The payment platform performs further processing of the request (with parameter consistency check) and sends it to the Bizum service.
- The Bizum service processes the request and sends it to the bank service.
- The request is processed on the side of the bank service.
- The information about the need to complete confirmatory steps is sent from the bank service to the Bizum service.
- The information about the need to complete confirmatory steps is sent from the Bizum service to the payment platform.
- The payment platform sends a callback to the web service containing information that the customer needs to complete confirmatory steps, the status of the
saleoperation is set toawaiting customer actionuntil the customer completes all required payment steps. - The payment instructions are displayed to the customer on the web service side.
- The notification indicating the need to complete confirmatory steps is sent from the bank service to the customer device.
- The customer completes all required payment steps on the bank service side according to the instructions.
- The purchase is processed in the bank service.
- The result is displayed to the customer on the bank service side.
- The bank service sends a notification about the result to the Bizum service.
- The Bizum service sends the payment result notification to the payment platform.
- The payment platform sends the payment result callback to the web service.
- The customer receives the payment result information from the web service.
Information about the formats of requests and callbacks used for processing payments by using the Bizum method via Gate is presented further in this section. General information about working with the Gate API is presented in Interaction concepts.
Request format
There are several things you need to consider when sending purchase requests by using the Bizum method:
- To initiate each purchase, send a separate POST request to the
/v2/payment/banks/bizum/saleendpoint. This endpoint belongs to the group /v2/payment/banks/{payment_method}/sale. - Each request must include the following objects and parameters:
- Object
general—general purchase information:project_id—project identifier obtained from Ecommpay during integrationpayment_id—payment identifier unique within the project (only letters and digits in UTF-8 encoding are allowed, without using special characters and punctuation marks)signature—request signature generated after all required parameters are specified (details—in the Signature generation and verification) (details)
- Object
payment—payment information:amount—payment amount in the smallest currency unitcurrency—payment currency code in the ISO-4217 alpha-3 format
- Object
customer—customer information:id—customer identifier unique within the projectip_address—customer IP address relevant for the initiated payment
- Object
- Additionally, it is recommended to specify the following objects and parameters:
- Object
customer—customer information:phone—customer phone number (must be specified using the international format, including the country code). If this parameter is missing, the payment platform may send the missing parameter in a callback requesting additional information submission (details are available in Submission of additional payment information).
- Object
- Additionally, any other parameters included in the specification can be used.
Thus, a correct purchase request by using the Bizum method must contain the project identifier, basic payment information (identifier, amount, and currency code), customer information, signature, as well as possible additional parameters.
{
"general": {
"project_id": 210,
"payment_id": "test_payment",
"signature": "PJkV8ej\/UG0Di8hTng6JvipTv+AWoXW\/9MTO8yJA=="
},
"payment": {
"amount": 1000,
"currency": "EUR"
},
"customer": {
"id": "customer123",
"ip_address": "192.0.2.0",
"phone": "+11234567889"
}
}
{
"general": {
"project_id": 210,
"payment_id": "test_payment",
"signature": "PJkV8ej\/UG0Di8hTng6JvipTv+AWoXW\/9MTO8yJA=="
},
"payment": {
"amount": 1000,
"currency": "EUR"
},
"customer": {
"id": "customer123",
"ip_address": "192.0.2.0",
"phone": "+11234567889"
}
}
Formats of intermediate callbacks containing information about the need to complete confirmatory steps
Each payment made with the Bizum method requires receiving an intermediate callback from the payment platform The format of such callbacks is standard (details), and contains information about the status of the sale operation being set to awaiting customer action until the customer completes all required payment steps.
"customer": { "id": "id213" }, "decision": { "message": "Transaction has been checked by RCS" }, "operation": { "id": 7280000015348, "type": "sale", "status": "awaiting customer action", "date": "2025-11-19T06:46:13+0000", "created_date": "2025-11-19T06:46:02+0000", "request_id": "83f70191f842cbb1-00007281", "sum_initial": { "amount": 10000, "currency": "EUR" }, "sum_converted": { "amount": 10000, "currency": "EUR" }, "code": "9999", "message": "Awaiting processing", "provider": { "id": 21624, "payment_id": "", "auth_code": "" } }, "signature": "n/UPMi4E+dqlU8bPP5dsoFyWPEufQ==" } }
Final callback format
The Bizum method uses the standard format for callbacks to deliver purchase results. For more information, see Handling callbacks (details).
The following is the example of a callback with information about a 10.00 EUR purchase made in the 442 project.
{
"project_id": 442,
"payment": {
"id": "Bizum_SALE_42:05_IIx8U",
"type": "purchase",
"status": "success",
"date": "2026-04-14T10:42:18+0000",
"method": "Bizum",
"sum": {
"amount": 1000,
"currency": "EUR"
},
"description": ""
},
"operation": {
"id": 2882000012699,
"type": "sale",
"status": "success",
"date": "2026-04-14T10:42:18+0000",
"created_date": "2026-04-14T10:42:06+0000",
"request_id": "f56c90e7c8d597fd77116313-00008328",
"sum_initial": {
"amount": 1000,
"currency": "EUR"
},
"sum_converted": {
"amount": 1000,
"currency": "EUR"
},
"code": "0",
"message": "Success",
"provider": {
"id": 21460,
"payment_id": "1747996932112",
"auth_code": ""
}
},
"signature": "6RUL34SFfqATQ3jKtzdoUfXMebAEajM5ktBziSsqaNHQQ14A=="
}
The following is the example of a callback with information about a declined purchase.
{
"sum_request": {
"amount": 150000,
"currency": "EUR"
},
"request_id": "5f15df63d-00000651",
"transaction": {
"id": 655000012161,
"date": "2026-04-14T10:42:30+0000",
"type": "purchase"
},
"payment": {
"method": "Bizum",
"date": "2026-04-14T10:42:30+0000",
"result_code": "20000",
"result_message": "General decline",
"status": "decline",
"is_new_attempts_available": false,
"attempts_timeout": 0,
"id": "Bizum_SALE_cDR7O",
"cascading_with_redirect": false,
"is_cascading": false,
"split_with_redirect": false,
"method_id": 1824,
"provider_id": 21460
},
"sum_real": {
"amount": 150000,
"currency": "EUR"
},
"rrn": "",
"company": {
"id": 1,
"title": "QA Company"
},
"general": {
"project_id": 442,
"payment_id": "Bizum_cDR7O",
"signature": "7rmkfAJsjl/kklkKMy/n1YuCiHZQwbYCfJd1vp0SjXJt7LQ=="
},
"description": "",
"operations": [
{
"id": 655000012671,
"type": "sale",
"status": "decline",
"date": "2026-04-14T10:42:30+0000",
"processing_time": null,
"request_id": "5f140c1cb3e54832a4edc7f3606420000651",
"sum": {
"amount": 150000,
"currency": "EUR"
},
"code": "20000",
"message": "General decline",
"provider": {
"id": 21460,
"payment_id": "1747996944360"
}
}
]
}
Useful links
The following articles can be useful when implementing purchases via Gate:
- Interaction concepts—about the interaction with the payment platform by using Gate.
- Signature generation and verification—about the procedure of generating and verifying signatures in requests and callbacks.
- Payment processing—about the types, processing models, and possible statuses of supported payments and operations.
- One-time one-step purchase—about processing of one-time one-step purchases with immediate debiting of funds by using Gate.
- Handling operation processing information—about error and response codes that are used in the payment platform to record information about performing of operations.
Refunds by using Gate
General information
To perform a refund through Gate by using the Bizum method, send a request with all required parameters and signature to the Ecommpay URL and receive a callback with the result. The full sequence and special aspects of refund performing are provided below.
- A customer initiates a refund.
- The web service sends the request for performing the refund by using Gate to the specified Ecommpay URL.
- The payment platform receives the request.
- The payment platform validates the required parameters and signature in the request.
- The payment platform sends the response to the web service with information about the receipt of the request and its validity (details).
- The payment platform performs further processing of the request (with parameter consistency check) and sends it to the Bizum service.
- The refund is processed on the side of the Bizum service.
- The Bizum service sends the result notification to the payment platform.
- The payment platform sends the result callback to the web service.
- The customer receives the refund result information from the web service.
Information about the formats of requests and callbacks used for performing refunds by using the Bizum method via Gate is presented further in this section. General information about working with the Gate API is presented in Interaction concepts.
Request format
There are several things you need to consider when sending refund requests by using the Bizum method:
- To initiate each refund, send a separate POST request to the /v2/payment/refund endpoint.
- Each request must include the following objects and parameters:
- Object
general—general refund information:project_id—project identifier obtained from Ecommpay during integrationpayment_id—identifier of the payment that needs to be refundedpayment identifiersignature—request signature generated after all required parameters are specified (details—in the Signature generation and verification)
- Object
payment—refund information:description—refund description or commentamount—refund amount in the smallest currency unit (required for a partial refund)currency—refund currency code in the ISO-4217 alpha-3 format (required for a partial refund)
- Object
- Additionally, any other parameters included in the specification can be used.
Thus, a correct refund request by using the Bizum method must contain the project and payment identifiers, description of the refund, signature, and, if necessary, currency code and refund amount.
{
"general": {
"project_id": 210,
"payment_id": "test_payment",
"signature": "PJkV8ej\/UG0Di8hTng6JvipTv+AWoXW\/9MTO8yJA=="
},
"payment": {
"description": "test refund",
"amount": 1000,
"currency": "EUR"
}
}
{
"general": {
"project_id": 210,
"payment_id": "test_payment",
"signature": "PJkV8ej\/UG0Di8hTng6JvipTv+AWoXW\/9MTO8yJA=="
},
"payment": {
"description": "test refund",
"amount": 1000,
"currency": "EUR"
}
}
Callback format
The Bizum method uses the standard format for callbacks to deliver refund results. For more information, see Handling callbacks.
The following is the example of a callback with information about a 400.00 partial refund made in the 442 project.
{
"project_id": 442,
"payment": {
"id": "Bizum_SA_r5raf",
"type": "purchase",
"status": "refunded",
"date": "2026-04-14T10:41:49+0000",
"method": "Bizum",
"sum": {
"amount": 0,
"currency": "EUR"
},
"description": ""
},
"operation": {
"id": 1315000012748,
"type": "refund",
"status": "success",
"date": "2026-04-14T10:41:49+0000",
"created_date": "2026-04-14T10:41:37+0000",
"request_id": "0e241237b73aee5fd263edcff230eb77e38-00001316",
"sum_initial": {
"amount": 40000,
"currency": "EUR"
},
"sum_converted": {
"amount": 40000,
"currency": "EUR"
},
"code": "0",
"message": "Success",
"provider": {
"id": 21460,
"payment_id": "1747996908248",
"auth_code": ""
}
},
"signature": "n7SrAOilMAiKTSYjSWZs3IJrg61Z80oT6KX6hNd2A+nXXQ=="
}
The following is the example of a callback with information about a declined refund.
{
"project_id": 433772,
"payment": {
"id": "TEST_PAYMENT_832327",
"type": "purchase",
"status": "success",
"date": "2026-04-14T06:44:10+0000",
"method": "Bizum",
"sum": {
"amount": 1000,
"currency": "EUR"
},
"description": "TEST_PAYMENT_832327"
},
"customer": {
"id": "1"
},
"errors": [
{
"code": "2701",
"message": "Rules Failed Code",
"description": "fatal: RULES_FAILED_CODE"
},
{
"code": "3358",
"message": "Operation amount is less than limit",
"description": "Operation amount is less than limit"
}
],
"operation": {
"id": 2764000012860,
"type": "refund",
"status": "decline",
"date": "2026-04-14T06:44:10+0000",
"created_date": "2026-04-14T06:44:09+0000",
"request_id": "bf5881904060b767f36d20001711",
"sum_initial": {
"amount": 100,
"currency": "MXN"
},
"sum_converted": {
"amount": 18,
"currency": "USD"
},
"code": "2701",
"message": "Rules Failed Code",
"provider": {
"id": 21460,
"payment_id": ""
}
},
"signature": "zAmT6dAKwcgu07ZNvA2q+kt53WDPRIRv/yBak0GA=="
}
Useful links
The following articles can be useful when implementing refunds via Gate:
- Interaction concepts—about the interaction with the payment platform by using Gate.
- Signature generation and verification—about the procedure of generating and verifying signatures in requests and callbacks.
- Payment processing—about the types, processing models, and possible statuses of supported payments and operations.
- Purchase refunds—about performing of refunds by using Gate.
- Handling operation processing information—about error and response codes that are used in the payment platform to record information about performing of operations.
Refunds by using Dashboard
When working with Dashboard, you can perform single and mass refunds by using the Bizum method.
- To perform a single refund, select the target purchase, open its information tab, specify the amount of the refund, send a request and verify that the refund has been performed.
-
To perform a mass refund, prepare and upload a file with information about all target refunds, send a batch request, and verify that the refunds have been performed.
Use a CSV file structured according to the requirements presented in the Mass payments data section. The refund parameters must comply with the requirements (you do not have to generate a signature because it is specified by Dashboard).
More information Information about performing refunds by using Dashboard is presented in a separate section.
Analysis of payments results
To analyse information about payments made with the Bizum method and other methods, you can use:
- Dashboard interface toolkit with various lists and analytic panels.
- Reports in CSV file format, available via the Reports section (one-time and periodically).
- Data in JSON format, sent by program requests to a specified URL available by using the Data API interface.
If you have any questions, refer to the documentation (Dashboard and Using Data API) and Ecommpay technical support.