Payment Method is invalid with the current Transaction Date -- Unable to create an invoice in AR
    This is regarding creation of invoice using API  ar_invoice_api_pub.create_single_invoice. I get the following error message
	
" ORA-20001: APP-AR-11385: The Payment Method is invalid with the current Transaction Date.:".
	
I have checked the start date of payment method and it is 01-Jan-2010. Transaction date is being passed as 26-Jul-2010 but I still get this error message. Could you please tell me what could be the reason for this. 
Thanks,
Shoeb