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SOAP Tooklit Authentication Update
Cybersource will no longer support username- and password-based authentication for merchants
who use the
SOAP toolkit key
. You are required to 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 Cybersource will be rejected if you do not implement P12
authentication by the required dates.