Retention and Advance for Vendors in SAP

Question

Dear All
Iu2019m part of the SAP ECC 6.0 (with EPH4) E2E implementation team for Construction industry. They have a unique requirement. They will create P.O {(say for Example 10000 RS with 20% advance, 10% retention (of invoice value)} and then
During Advance
Advance to Vendor a/c Dr           2000
                      To Vendor a/c Cr     2000
Vendor a/c Dr                     2000
        To Bank a/c Cr          2000
During GRN
Stock a/c DR                    3000     
       To GR/IR a/c CR          3000
During Invoice
GR/IR a/c DR                    3000
     To Vendor                2100
     To Retention Payable          300
     To Advance to vendor          600
During payment
Vendor a/c DR               2100
     To Bank a/c Cr          2100
Is this possible in SAP? If yes please let me know how this can be done.
Regards
Rajaram

Answer 1

Hi,
My suggestion is you go following way:
Vendor A/c Dr ....Specail GL (A)    
       To Bank
this is for the advance payment
Then complete the GRN Part
Then complete the MIRO Part without retention, where in you book entire amount to the credit of sundry creditors
For retention, create a special gl and post the entry separately
Vendor Account Dr
Vendor Account Cr....special GL (R)
This will also keep the track of the things in vendor account, as you will require this amount to be paid later once the contract is complete.
Let me know, if it helps.