Error while deleting Hierarchies through TCode - comm_hierarchy

Question

Hi there,
  We are trying to import the Product Mater data from SAp R/3 4.7 to mySAPCRM 4.0.
  The CRM system already has product master data (hierarchies, categories and products) from old logical R/3 system. So We have directly deleted all the categories in the master table COMM_CATEGORY using TCOde SE14 (have not deleted the products prior to that).
Now if we try to delete a Hierarchy thru the TCODE COMM_HIERARCHY, it thows an error message "Hierarchy still conatins categories".
Any idea, how we could correct this.
Thanks,
Ramya.

Answer 1

Ramya, I do think we have a little problem here. First of all never delete any from the database, period. This causes in many (if not all) cases inconsistencies. First question I have, do you have a back-up from before you initiated this deletion? If so, please restore.
Second question in order to be able to upload this hierarchy information you must ensure the corresponding number ranges in the old R/3 system and the new R/3 system do not overlap. Only in this situation you can load the new hierarchy in the CRM environment.
If there is an overlap, create a separate number range in CRM starting where the number range in the old R/3 system ends. In the replicating object add a filter to only load the hierarchies that do match this newly created number range. This will at least enable you to partially load hierarchy info from the new SAP system.
Hope this helps, Tiest