Salesforce Flow Deletion Fails with Internal Server Error Due to Existing Interview References

To resolve the "An internal server error as occurred" when trying to delete a Salesforce Flow,  perform the following steps:

1. Identify any Flow Interview records linked to the Flow you are trying to delete.

• Go to Setup in Salesforce.
• In the Quick Find box, search for Paused and Failed Flow Interviews.
• Open the Paused and Failed Flow Interviews page.
• Locate the interviews associated with the specific flow you are trying to delete.
• Click on each related interview record.
• Select Delete to remove the interview reference.

    2. Delete all associated Paused and Failed interview references (either manually or via a data tool like SOQL, Workbench, or Data Loader).
    3. Once all paused and failed interview references are removed, retry deleting the Flow.
    4. The Flow should now delete successfully without triggering an internal server error.