Default GL Assignment to Tax Code - Very Urgent

Question

Dear Friends,
When I am doing the T. Code MIRO, the Service tax receivables and Education cess receivables are automatically coming in the accounting entry.
The entry is as follows :
GR / IR A/c                    Dr     10500
Service Tax Receivables          Dr         315
Education Cess Receivables          Dr             6. 30
     To Vendor Account                         10821.30
Actually this is Service vendor transaction. So, I did the following transactions in MM.
1.     Created  Purchase order u2013 I gave Tax code as S6 in that.
2.     Created Service sheet through T. Code u2013 ML81N u2013 in this I gave the cost center and GL A/c ( GL A/c is --  Lease Rentals )
3.     Invoice Posting through T.Codeu2013MIRO u2013 in this also mentioned the Tax Code-S6
Note : As per MM Consultant we should not do the MIGO because this is service vendor and when we release the service sheet then automatically MIGO entry will post.
So, in the above 3 transactions ( MM ), Any where I did not mentioned the Service tax recv and Education cess recv GL accounts manually.
Our client is following the CIN u2013 TAX INN procedure.
Account keys u2013 ESA and ESE are updating in the above transaction.
I checked the following T. Codes for automatic assignment of GL accounts to the Tax Code.
1.     OBYC
2.     OB40
3.     OBQ3
4.     FTXP
5.     FV 11 & 12 & 13
6.     OKB9
7.     Validations and Substitutions
8.     User Exists
9.     spro u2013 Logistics general u2013 Tax on goods movement u2013 India u2013
10.     FBKP
11.     OB28, OBBH , OBCN , GGB0, GBB1 , GBX2.3
So, In all the above T. Codes I did not find any assignment of GL Accounts to the above said Tax Code u2013 S6.
Now  problem is My client is saying that the 2 GL accounts i.e. Service tax recv and Education cess recv GL accounts should not effect when they use Tax Code S6.
I am not able to find where these GL accounts are assigned to the Tax Code u2013 S6.
SO , KINDLY EXPLAIN ME WHERE THESE 2 GL ACCOUNTS ARE ASSIGNED TO THE TAX CODE .
Its very urgent, looking forward for  an early and  positive reply.
Thanking You,
Regards,
K. S. Sai Kumar
09930870886
Hyderabad.

Answer 1

Dear All,
I checked the following T. Codes for automatic assignment of GL accounts to the Tax Code.
1. OBYC
2. OB40
3. OBQ3
4. FTXP
5. FV 11 & 12 & 13
6. OKB9
7. Validations and Substitutions
8. User Exists
9. spro u2013 Logistics general u2013 Tax on goods movement u2013 India u2013
10. FBKP
11. OB28, OBBH , OBCN , GGB0, GBB1 , GBX2.3
So, In all the above T. Codes I did not find any assignment of GL Accounts to the above said Tax Code u2013 S6.
Thanking You,
Regards,
K. S.Sai Kumar