Updation of Source type & Source no. for Excise entries

Hi all,

My client as asked for updation of source type & source no. for ledger entries of “Excise Payable Account”.(COA 2994 in cronus).

In Navision only for “Excise Payable Account” → Ledger Entries, Source type & source no. were not appearing but for all other accounts in there ledger entries source type & source no. were able seen.

I want to know why only for excise entries it was not getting updated.

I have tried this. I came to know that i have to make changes in codeunit 12(Gen. Jnl.-Post Line).

Help me in solving this.

Thank U