Enable embedding legacy dialogs to open reports

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

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×