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20152: Invalid Header

ERROR: 20152

PLATFORM

ERROR

Error - 20152

Invalid Header

The header of the JWT provided to the Twilio API was invalid.

Possible Causes

The structure of the header was invalid.
Required header values not provided
Provided header values invalid.

Possible Solution:

For the details on JWTs used as part of Public Key Client Validation, see the documentation
To check whether the JWT is structurally correct, you can use the tools available at jwt.io.