Connect Bizum

Bizum in Calendia uses your Redsys virtual terminal. The customer completes a redirected payment using Bizum; no physical card reader is synchronized. Ask your acquiring bank or Redsys partner to enable Bizum for the exact virtual terminal you intend to use. Your bank supplies the credentials and its own access instructions, so follow its process rather than looking for a universal Bizum login page.

Map the credentials

In Company settings > Payments, select Bizum. Enter the bank-issued commerce identifier in Merchant code, the virtual terminal number in Terminal, and the Redsys signing secret in Secret key. This secret is used for the payment signature, not a public API key. If offered, set Merchant name to the name customers should recognize. Choose Environment: test while using the bank's test credentials, then switch to production with the matching live credentials only when the bank has enabled your terminal. Save and activate the integration.

Do not mix a live code with a test terminal or signing key. If payments cannot start, confirm with your bank that Bizum is enabled for that terminal and that the code, terminal and key all belong to the same environment. If the customer returns without a confirmed result, inspect the payment status in Calendia before retrying. Keep the signing key private and rotate it through your bank if exposed. Use the bank's test process; do not run a live charge merely to check configuration.

Redsys Bizum information · Redsys integration guides