Hello SVLInc,
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.
Please note that Contact Form 7 is a 3rd party product and not built or supported by Constant Contact, so we are limited in the support we can provide, but will try to answer any questions to the best of our ability as they pertain to Constant Contact’s API endpoints and functionality.
Based on Contact Form 7’s documentation on their 3rd party integration with Constant Contact, it looks like the “https://www.example.com/wp-admin/?auth=constant_contact” format for the redirect URI is required. If this redirect URI can’t be accessed directly due to SSO, you may want to check with Contact Form 7 to see if an alternative Redirect URI which doesn’t require SSO on your end can be used. You could also check with miniOrange to see if they have a way to bypass the redirect.
Alternatively, since authorization for the integration should only need to be granted once, you could potentially look into disabling the SSO redirect just for the period of time you need to authorize the integration, at which point the integration would utilize refresh tokens to maintain access to your Constant Contact account.
If you continue to have issues, you'll need to reach out to Contact Form 7's support team for further assistance with their software:
Contact Form 7 - Support
https://contactform7.com/support/
WordPress.com Support
https://wordpress.com/support/help-support-options/
Please have a look and let us know if you have any other questions!
Regards,
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