SAP Message VVSCSOLL061 - Grouping error

Diagnosis
Items with and without Unilife characters should be condensed into oneupdate group. However, this is not possible as one incoming payment isgenerally available for items with Unilife characters for whichclearing should take place. There should be no clearing for itemswithout Unilife characters. Therefore, a collective update cannot takeplace.

System Response
Update does not take place.