For every posting in controlling module, SAP generates document with a number. These document numbers are unique to each controlling area, since each number is assigned only once to one controlling area.
In Controlling, there are no legal requirements for a continuous assignment of document numbers. Every transaction that you carry out on the controlling area level has to be assigned to a number range group. A number range group, in turn, includes two document number intervals:
- An internal interval for all documents to which the user did not explicitly assign a document number
- An external interval for all documents where the document numbers were assigned by the user.
Number range configuration for SAP Controlling documents can be carried on by using transaction code KANK