CLIENT_ID_MISMATCH
403authThe supplied client_id does not match your session.
Cause
You passed an explicit client_id that differs from your authenticated client account.
How to fix it
Drop the explicit client_id; the gateway derives it from your credentials/session.
Example response
403 CLIENT_ID_MISMATCH
JSON
{
"error_code": "CLIENT_ID_MISMATCH",
"error_type": "auth",
"error_message": "The supplied client_id does not match your session.",
"hint": "Drop the explicit client_id; the gateway derives it from your credentials/session.",
"docs_url": "https://docs.billerapi.com/errors/CLIENT_ID_MISMATCH",
"request_id": "d94f5e2a-8c3b-4f1e-9a7d-6b2c1e0f8a34"
}Related
- Error handling — the error envelope shape and how to parse it
- Error code reference — every stable error code
Canonical docs URL: https://docs.billerapi.com/errors/CLIENT_ID_MISMATCH
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