Does anyone know why AP account is not listed in the expense subtab of create credit card page

Can you explain more about the type of transaction you are trying to do.

I am trying to create a credit card transaction using Use credit card transaction navigation. All the account type except AP is showing on the line level I need to know why system is showing this behaviour

Accounts Payable accounts are normally used in Vendor Bills. You can create a Bill Payment to pay AP from Vendor Bills using a Credit Card account. Standard process is to use Bill > Bill Payment process for that (instead of Use Credit Card Transaction). (I hope your AP wasn't setup via JE/Deposit/non-Bill.)

Do you know the exact reason why it is not showing because all other account types are showing even AR

My hunch is NS is forcing you to follow the Bill > Bill Payment process. Normally, you will record an AP via a Bill anyway. Didn't you?

We are using Bill Payments

And you want to stop doing that?

But customer need to do it via Credit card I have checked in all the test accounts AP is not showing More like a comon setup But they didn't mention why

Credit card transaction isn't linked with Vendor Bill. It is a standalone transaction and won't update the Bill status from Open to Paid/Paid in Full (but you're not allowed to choose AP anyway in the credit card). Why does it have to be Credit Card? What is wrong with Bill Payments?

Then why in Vendor transaction is showing AR