Many banks are offering 'check printing' services and so users need to get a flat file of EFT payments from Dynamics GP. The file format requirements often have several addenda lines needed for company and payee information that the user can achieve with the IAT addenda 1-7 lines. However, the 'IAT addenda' line for REMITTANCE information is not coded. (Assume it was not an optional field on the initial IAT standard format.) So there are no lines that will pull in the remittance information (ie. invoices that make up the payment.). You can use the regular 'addenda' lines in GP, but then they print out of order and the bank will not accept the file. The IAT format needs to have an 'IAT ADDENDA' line after the IAT Addenda 7 line. This line should print one remittance record for each invoice that makes up the payment (just like the other addenda option).