A trailing zero is a zero digit in the representation of a number that has no non-zero digits that are less significant than the zero digits. Put more simply, it is a zero digit with no non-zero digits to the right of it.
The number has 2 trailing zeros. Note that there are 2 other zeros in the representation of the number, but they do not count as trailing zeros because there are other non-zero digits that are less significant. So trailing zero means 3 more zero digits behind your total number, ex: 175,000 become 175,000.00
Step 1. Go to Setup, Select More Menu, then Click Module
Step 2. Go to Printing Tab, then Configure Trailing Zero
Set how many zeros you want to show.
Step 3. Go to Orders and Re-print Invoices
Before (there are no other zeros behind the total).
After (it shows there are 3 more zeros behind the total).
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You can also auto-generate the member/customer code. To make an auto-generate member/customer code, you can read this article: Auto-Generated Member Code
To set the time zone on the DealPOS application, check the following article: Setting Up Time Zone
If you want to customize the invoice number, you can check this article for a more detailed explanation : Setup Transaction Numbering