For each Check ID that you plan to do Positive Pay:

• On Purchasing > Setup > Check ID Codes > Bank tab enter your bank account number in Account No. field.
• On the Check ID Codes > Check Media Setup tab setup exactly like the example below (Key Bank specifications). If you are not planning on doing Payee Name Verification, then leave off columns 7-9.

Each time you process checks in KVS (including any manual checks) you will go to Purchasing > Processes > Create Bank Check Media to create the file which you will upload to Key Bank.  The file that is created is a text file, with extension .txt.

With Key Bank you can create a test file with checks that you have previously issued.