Unable to apply Credit Memo to my invoice by using Sage Intacct SDK

[srikanth-switchfx]

Hi Team,
I have gone through the documentation but did not find solution for my problem. Here it is, As a user , I can go to the Sage dashboard and create Credit Memo. Once it is created , I can apply the same for the invoice so that Invoice amount gets deducted and status converts to "Partially Paid". The Credit Memo status changes.

I want to implement the same from my application. The business team creates Credit Memos and Invoices in Sage Application. Once those are created and these are reflecting in my application. Now, the user can apply credit memo against to invoice so that invoice status should update to "Partially Paid" and credit memo status should change. I have verified the documentation as per it , I need to do the below things.

1. Create ARadjustment object then need to use ARPaymentappy as below

link: https://developer.intacct.com/api/accounts-receivable/ar-payments/#create-ar-payment-legacy

The above solution is not working. Could you help me on this