DELPHI32 uses an internal record keeping system that automatically assigns invoice numbers to all transactions. This is done without any intervention on your part but if you are interested in the methodology behind how invoice numbers work, please read on.
Since DELPHI32 assigns a unique invoice number to each session, all payments and adjustments against a session will share that exact same invoice number. This concept ties in directly with the Open-Item Accounting concept that allows you to apply payments and adjustments against specific, individual sessions. Invoice numbers are critical to the inner workings of the software.
Most screens that show transactions also display the invoice number assigned to that transaction and can provide you with insight into how information was entered into DELPHI32 and in what order that information was entered.
Here are some basic rules for understanding invoice numbers:
An invoice number is made up of a number followed by a letter. For example, 2037A (number 2037 followed by the letter A.)
As you continue to record sessions, DELPHI32 will continue to add the letters B, C, D, E, and F to an existing invoice number. This is because an insurance claim can contain only six sessions.
Once the letter 'F' is used, DELPHI32 will issue a new invoice number beginning over again with the letter 'A.'
If you were to record eight sessions in a row before printing an insurance claim, the first six sessions would appear on the first claim (1000A, 1000B, 1000C, 1000D, 1000E, and 1000F) and the 7th and 8th sessions would appear on the second claim (1001A, and 1001B.) Notice that the invoice number changed after you record more that six sessions.
DELPHI32 issues a new invoice number after an insurance claim is printed and starts the lettering over again at 'A.'
If you were to record four sessions, print an insurance claim, and then record four more sessions, the first four sessions would appear on the first claim (1000A, 1000B, 1000C, 1000D) and the second four sessions would share a new invoice number (1001A, 1001B, 1001C, 1001D) and appear on the second claim.