SOAP Toolkit Authentication Update

Barclays will no longer support username- and password-based authentication for merchants who use the SOAP Toolkit key
. You must remove username- and password-based authentication from your SOAP Toolkit integration and transition to certificate-based authentication by these dates:

Test Environment: April 15, 2026

Production validation test (shock test): September 30, 2026. This applies only to selected merchants.

Production Environment: October 7, 2026

Your API requests to Barclays will be rejected if you do not implement P12 authentication by the required dates.

See the P12 Authentication Upgrade for SOAP Toolkit Key Users Migration Guide
.

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