DEX Error – Cannot detach clients

DEX Portal File Processing returns the following error:


Cannot detach clients from a case until the clients have been removed from all associated sessions


This error occurs when a Regular Attendee is deleted from a case when they’re also a Session Attendee on a previously reported session.

Session Attendees have to be a Regular Attendee on the parent case, so they can’t be removed from a case if they’re listed as attending a session.

To avoid this error, Regular Attendees shouldn’t be removed from a case that has been previously reported to DEX.


Contact CDS Support for assistance with migrating the sessions to a new case record.

Next Steps

Updated on February 12, 2020

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