Services account determination

Question

Hello Gurus,
I have a question about services account determination.
I have created several valuation classes and linked them with different GL accounts. This is done because there is a requirement that the GL account should be determined according to the service category.
I have entered a valuation class into the service master record (AC02).
The account determination customizing is as follows: OBYC -> WRX -> val. modif. valuation class and GL account
The rules configuration for WRX is:
tick at valuation modification
tick at valuation class
However, during service delivery the GL account is determined from a blank valuation class entered at OBYC.
Why the GL account is not determined according to the valuation class as it happens with the materials?
Thank you in advance!

Answer 1

Dear ,
Kindly refer SAP note 64204 "MM-SRV: Determination of the GR/IR clearing account"
It says
Symptom
The GR/IR clearing account is not found when you post the service recording with
Transaction ML81.
Cause and prerequisites
The valuation class from the service master is not used for the GR/IR clearing account
determination (Transaction WRX) when posting the external services management.
Instead, valuation class ' ' is assumed.Thus, the same account is found as if you make
a posting for a purchase order with material number 0.This account determination
procedure was chosen because there are generally several services with different
valuation classes for each purchase order item.Thus, the GR/IR clearing account cannot
be determined unambiguously by means of the valuation classes from the service master.
Solution
1. In order to determine the GR/IR clearing account for the service entry sheet, add
an entry with valuation class ' ' in the account determination table for
transaction/event WRX. (Customizing path: 'Materials Management -> Valuation and
Account Assignment -> Account Determination -> Create automatic postings)
2. As of Release 4.0, a user exit is available which you can use to set the account
grouping code for transaction/event WRX in relation to the characteristics of the
purchase order. Thus the determination of the GR/IR account can be controlled
separately for material and service orders via the user exit. You can activate the
user exit via customer enhancement LMR1M002.
Edited by: redriver on Feb 9, 2012 2:42 PM