Transaction ID

Enter up to 20 alphanumeric characters for a new memorized transaction ID. You cannot use *, ?, or + in the code. For existing memorized transactions, you can look up the transaction you want.

The code is case sensitive, so that codes A1 and a1 are seen as two different transaction IDs. Numbers sort before letters, and capital letters sort before non-capital letters. It's important to use consistent and logical coding. You might want to code your most popular items so that they will appear first.