About MasonA93

Hello MasonA93,   Thank you for reaching out to Constant Contact API Developer Support.    Based on your examples in comparison with our logs, it looks like when sending the request, the access token is being truncated and the full bearer token is not being sent in the request.   Because it does appear to be a valid portion of a JWT token, our best guess is that there may be an issue with how the token is being parsed and/or stored as a variable once it is returned, causing only a portion of the full value to be stored, which would cause the error that you are seeing.   You can also reach out to our team directly if desired, by emailing us at webservices@constantcontact.com and referencing case #30600138.   Please have a look and let us know if you have any other questions! ... View more

Hello user550237, Thank you for reaching out to Constant Contact API Developer Support. Yes, you are correct. If you have stored the last refresh token generated, it will still work, regardless of how long the access token has been expired. Rotating Refresh Tokens will not expire unless they have been used and/or a new token set has been generated. Rotating refresh tokens can only be used once, as generating a new set of tokens causes all previous refresh tokens to expire. Please have a look and let us know if you have any other questions! ... View more