FB01 - Can we use assignment field to mention GL Account ?

Question

Dear Experts,
We have a requirement regarding India GAAP and in this regard kindly share your valuable inputs.
We are going with account solution ( maintaining multiple accounts)
Current Plan
In this context, we have to maintain many GL Accounts.
Hence we want to maintain  few GL Accounts say a single P&L Accounts for IGAAP, wherein while posting IGAAP accounting entry.
We wish to use assignment field to reference the original GL Account against which this valuation entry is posted
Eg: As per US GAAP
       400000 GL Depreciation  Plant & Machinery Debit $5500
       200000 GL Accumulated Depreciation Plant & Machinery Credit $5500
      As Per IGAAP, Depreciation amount is $6100, hence the valuation difference ( $6100-$5500= $600)
Line 1-     999999 IGAAP Depreciation Valuation Difference Debit $600
Line 2-      299999 I GAAP Accumulated Difference Credit $600
In the Line Item 1 , in the assignment field , we mention GL Account 400000 as reference and
in the Line Item 2 , in the assignment field , we mention GL Account 299999 as reference.
Query
Can we make a setting in assignment field that GL Account only should be used for the document type, otherwise it should an error.
Note: We would be using seperate document type for the above IGAAP postings.
Regards
Sanjai 

Answer 1

Hi,
You can set up a validation for this through OB28.
Thanks,
Vinod.