G/L account not picking automatically for cost centre

Question

Hai
When ever i create a P.O for a cost centre ,when i enter the cost centre, the system is not picking the G/L account automatically. Instead i need to enter the G/L account manually.Why it is behaing like this? what is the solution?
I had checked all the setting as mentioned below
1.OBYC->   Here maintained the  G/L account for the comibination of
Valuation mod - Gereral Modi- Valuation class- debit g/l account - credit  g/l account
2.OKB9 -> Maintained entries for  Co.code- Cost element - Cost center
3.OME9- Account Modification is VBR
4.OBY6- Checked the field status variant, posting period variant

Answer 1

Hi,
Once u have given account assignment category 'K', then system will pick automatically G/L account from the OBYC settings for the combination of Valuation modification code,  account modifier (VBR) & Valuation class.
From the OME9 transcation, system will pick transcation key for the respective account assignment category.
For the  account assignment category 'K', account modifier is 'VBR'.
Here masterial master record (MMR) is optional. If you are giving MMR in the PO, system will pick valuation class from the MMR.
If MMR is not giving, then system will pick valuation class from the transcation OMQW. Here you need to maintain valuation class aganist material group, which is u r giving in the PO. ( This is optional)
In the OBYC transcation, for the transcation key  GBB you need to maintain G/L account for the combination Valuation modification code,  account modifier (VBR) & Valuation class.
Also maintain one more entry in the transcation key  GBB,  maintain G/L account for the combination Valuation modification code,  account modifier (VBR) & Valuation class field is blank.
Once you have given account assignment category 'K' in the PO, system will pick G/L for the combination Valuation modification code,  account modifier (VBR) & Valuation class. This is happening before giving the cost centre.
If you are not maintaining MMR in the PO and not maintaining valuation class aganist material group in the transcation OMQW, the system will pick G/L account for the combination of Valuation modification code,  account modifier (VBR) & Valuation class field is blank.
So in your case, check valuation class aganist material group in the transcation OMQW and maintain G/L in the OBYC for the respective combination. If valuation class is not maintained aganist material group in the transcation OMQW and maintain one more entry in the OBYC with the blank valuation calss field.
Regards
KRK