Linking Source Document to Cost Accounting Document
You can use the DRB to determine the link from the source document to the dependent cost accounting document.
There is a field catalog beginning with SAP_COBK for every archiving object that archives cost accounting line items. To determine the link from a source document to an archived cost accounting document, the DRB requires archive information structures for these field catalogs.
You should include fields REFBT, AWTYP and AWORG if you encounter runtime problems. To speed up access to the information structure, you should create a database index as detailed in SAP Note 164704. Include fields MANDT and REFBN.