Hello LBobA54,
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. I apologize for the delay in our reply.
You can can modify your V3 API key’s Refresh Token settings with the following steps:
Login to the “My Applications” page of the Developer Portal at https://app.constantcontact.com/pages/dma/portal/
Click on the title of the key you wish to modify the settings for
Click the “OAuth2” tab of the key’s settings
Under the “Application OAuth2 Settings” section, you’ll see an option for Rotating or Long Lived Refresh Tokens.
Please have a look and let us know if you have any other questions!
Regards,
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