How to amortize GST Tax Lines in AP through SLA Customization

Hi,

We had modified Sub ledger for AP Invoices and AP Credit Memos for handling Prepaid Expense Invoice using MPA functionality. The invoice will be charged to a prepaid expense account and the desired expense account will have to be entered by the user at invoice lines DFF.

Further requirement raised by the user that they want to amortize tax lines (Miscellaneous GST Tax Lines) too. So I  created  new JLT and put accounting class as Miscellaneous Exp and attached that to JLD. After validating AAD when I enter transaction and perform create accounting it complete with warning and report is showing with error: