Issue/Solution: Offsetting Account in FBL3N/FAGLL03

Issue:
You need Customer / Vendor Number (KUNNR/LIFNR) to be displayed for the offsetting GL accounts in the GL account line item reports FBL3N or FAGLL03

Soultion
There is no standard configuration to achieve this.
Using Sort key in the GL account will not populate data from the offsetting account
This can be achieved by using a BTE or BADI as described in the following SAP Notes
Note 112312 - Line item: Display of offsetting a/c information
Note 1034354 - FAGLL03: Display of offsetting account information

Further, if Vendor Name or Customer Name are also needed
Refer to the BTE solution provided by Burak in the following SDN thread..
http://forums.sdn.sap.com/thread.jspa?messageID=7848056&tstart=0#7848056

Add document header text (BKPF-BKTXT) to dynamic selection in FB03,FBL3N,FAGLL03

Requirement
Doc. Header Text to be added in the dynamic selection in FB03, FAGLL03 etc.

Solution
Refer to the reply from Jeccas_DJ on the following SDN thread
https://forums.sdn.sap.com/thread.jspa?threadID=357594&tstart=0