Hello Imran,
Follow the below steps:
Note: just explaining them point wise & what Krishna has stated is correct
1. Goto SPRO
2. Under SPRO follow the below path: Select "Set Updating of Partner Index"
3. Add a new entry as below
4. Save the changes (remember this will generate a transport request)
5. Goto VA05: click on partner function, you will receive a pop up box as below add BP in it as shown below.
6. Once done run the program "RVV05IVB" using SE38 selecting partner index, this will update old documents and they will get reflected the next time you run VA05.
Hope this was helpful.
Regards,
Naveen K.