SAP Note 27550 - No shares after release upgrade to 2.1/2.2 -> 3.0

Symptom:

The release upgrade from 2.1 or 2.2 to 3.0A was performed and program RGCON30A ("Conversion to 3.0A") was started as well during the update. However, the subgroup does not show the correct group shares (transactions GC17, GC18) but only "0,00000000".

Cause and prerequisites

Program error RGCON30A

Solution
Implement correction vsk014885 in RGCON30A and restart the conversion.