Create Transaction - can not find automatic receipt payment method

Question

Hi,
we are using 11i (11.5.10.2)
currently all our receipt are manual, with direct clearing, we would like to explore automatic creation with clear by matching.
so I have test the following in the development instance:
1) create a new receipt class (RC1) with
creation: automatic
remittance: standard
clearance: by matching
2) under this receipt class, i create a payment method (PM1), with
receipt inherit transaction number
number of receipt rule: one per invoice
receipt maturity date rule: earliest
lead day: 0
3) i added few existing bank accounts with
minimum receipt amount=0
and fill up all accounting GL code.
4) save.
i go to transaction window,
create 1 new transaction (invoice), but in payment method, i can't find this payment method.
so i go to customer site, add the payment method to it.
and i go back to the same invoice, but i still can't find the payment method.
what have I did wrong or miss out?

Answer 1

this is solved.
problem: need to assign a customer bank to the customer.