Document is still incomplete. Not possible to set status 'D'

What causes this issue?

Due to the Customizing settings, there are still fields that need to be
maintained in this document.

System Response

The system rejects the setting of status "D" (active).

How to fix this error?

Please refer to the incompletion analysis to see which fields still
need to be maintained, and then maintain them.

Error message extract from SAP system. Copyright SAP SE.