Enable embedding legacy dialogs to open reports

Applies to: Dynamics 365

Symptom


Users are not able to open reports.

"Something has gone wrong. Check technical details for more details."

Cause


Reports are failing to load in UCI with error "Form descriptor is null or not defined"

Reports in UCI still require legacy dialogs, so the customer system needs to have allowlegacydialogsembedding enabled.

Mitigation


Go to Settings >Administration > System Settings > General tab

Set "Enable embedding of certain legacy dialogs in Unified Interface browser client" to be "Yes"

allowlegacydialogsembedding