Diagnosis
You have tried to delete individual or all document items of a documentgroup.
This is not possible due the following:
Method CHECK_EF_GROUP is called with the active BAdI FM_EF_GROUP. Inthis method you can define any conditions under which a regrouping ofdocument items should be possible. You can use your own messages fromyour own message classes for this. The checks that are delivered in thesample implementation of the BAdI are explained in the methoddocumentation of the BAdI.

System Response
The system does not dissolve the group.