57012: Signature invalid

This error means the webhook signature on an incoming Messaging request did not match the signature Twilio calculated for that request. Twilio signs inbound webhooks with X-Twilio-Signature. For application/json requests, Twilio also includes a bodySHA256 query parameter and expects you to validate the raw request body.

• You validated the request against a URL that is not exactly the same as the webhook URL Twilio used, including query parameters or URL-encoded characters.
• You did not pass all received form parameters to the validator, or your framework trimmed whitespace from POST body fields.
• You treated a JSON webhook body like form data instead of passing the raw body to validateRequestWithBody.
• You used the wrong AuthToken, including a secondary token that has not been promoted to Primary AuthToken.

• Validate the request with the exact webhook URL Twilio requested, and keep any query parameters URL-encoded.
• For application/x-www-form-urlencoded requests, pass every received parameter to the SDK validation helper.
• For application/json requests, pass the raw body string to validateRequestWithBody and let the SDK verify the bodySHA256 value.
• Use your Primary AuthToken, and prefer Twilio's signature validation helpers instead of a custom implementation.

• Webhooks security
• Security
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