I did all steps via Polaris until auto-response I created an account at Constant Contact but during the authentication I am cornered it seems that it requests a blog domain ...when I copied the Sender Address Authentication with Constant Contact (recommended) in Polaris field of integretion
the message below appear:
Error
400 - Invalid redirect_uri
Constant Contact
Thank you for reaching out to Constant Contact API Developer Support. My team is here to assist outside software developers with questions about building into Constant Contact's API.
It looks like we reached out to you via email regarding this issue to request some additional information in order to assist in troubleshooting. If you still need assistance with this, please let us know!
Announcements
Join our list to be notified of new features and updates to our V3 API.
Sign Up