3332535 - Error message like "Merged item xxxxxx cannot be added to hotfix." is displayed when trying to add the merged items to hotfix - SAP S/4HANA Cloud Public Edition

Error message like "Merged item xxxxxx cannot be added to hotfix." is displayed when trying to add the merged items to hotfix in app Export Software Collections.

This is indeed a restriction which cannot be circumvented and which is necessary to ensure consistency of the merged software collection. 

There are two workarounds:

1. When two software collections are being merged, all the items of the source collections have to be transported together with the target collection once. After that, hotfixes are possible again.

2. Move the merged items to a new software collection with their dependencies.

KBA 3116689 - Export Software Collection - Best Practice

SAP Help Portal - Merge

hotfix, merged item, merge, export software collection, cannot be added to hotfix , KBA , BC-SRV-APS-EXT-SL , Manage and Import Software Collections , Problem