Problem: We have unpaid Invoices Received which we want to transfer from BS Account Payable to BS Other Payables.
Solution: Accounts Payable GL Account can be changed using Mutual Settlement Document.
1) . Suppose that you have there is unpaid Invoice Received from Company ABC with CR balance on BS Current Trade Payables:
2) . In order to transfer it to Other Payables (Other Liabilities) go to Accounting>Service Tools> Accounting > Service Tools > Mutual Settlements: 
Create a new document.
Transaction Type - Supplier Debt Assignment.
In both Supplier and Supplier Recipient select the same Company: 
In At Accounts Payable Tab tab, select unpaid Invoice Received: 
In At Payee Attributes Tab Select the Contract , select the Contract, open GL Account settings and select the new GL account in Accounts Payable field:
Posted Mutual Settlement will DR old GL account (Current Trade Payables) and CR new GL account (Other Current Payables):
3. In Company Statement, the Invoice Received will be removed, and Mutual Settlement will be added instead:
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