There is currently no official supported solution to delete Dynamics 365 Customer Voice survey responses automatically or programmatically. However, there is a tactical option that involves using the hidden Microsoft Forms API with a SharePoint authentication token to delete the responses. This can be done by using the Power Automate SharePoint connector and the "Send an HTTP request to SharePoint" action. The request format is as follows: Site Address: https://forms.office.com, Method: DELETE, URI: /formapi/api/forms('[D365-CUSTOMER-VOICE-FORM-ID]')/responses/. This request will delete all the survey responses associated with the given Dynamics Customer Voice survey, including the corresponding data from Dataverse. It's important to note that this solution is not officially supported by Microsoft and may stop working at any time.
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