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. For customers using integrations developed by 3rd parties using the Constant Contact API, we will typically refer them back to the developer of the application, as we do not have access to the application data needed for troubleshooting. If the developer of the Stripo integration believes that the issue is on Constant Contact's end, the developer will need to reach out to Constant Contact directly via the Developer Community forum or by email webservices@constantcontact.com with the details of the failed calls.
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