Non-numeric IDs are ignored
This tool checks numeric sequences, so prefixed order IDs need their number part separated first.
Strip stable prefixes such as ORD- or INV- before checking the sequence.
Use this tool
Prepare the input and run the tool
Paste numeric IDs, one per line or separated by spaces. Result: Copy the missing ID and duplicate ID report.
Ready.
Gap report appears here.
Data handling: Files and pasted data are processed in this browser session.
Tool guide
How to use Order ID Gap Finder
Use this when a sequence should be continuous and you need to spot gaps. It is useful for order exports, invoices, tickets, and batch IDs.
What this tool does
Paste numeric order, ticket, or invoice IDs and find missing numbers and duplicates.
- Input
- Paste numeric IDs, one per line or separated by spaces
- Output
- Copy the missing ID and duplicate ID report
Tool advantages
- Runs in this page; the file or pasted data is not sent to a new app.
- Keeps the preview, report, and download in the same screen.
- Gives you a report you can use as a cleanup list.
Step-by-step usage guide
- 1Paste the ID list.
- 2Run the gap check.
- 3Copy the missing and duplicate number report.
Common errors and fixes
A large missing range is reported
The pasted list may combine different stores, years, channels, or invoice books.
Filter the source to one sequence before treating a gap as a missing order.
Duplicates hide sequence issues
Repeated IDs can make a list look complete while still containing missing numbers.
Fix duplicate IDs first, then rerun the gap report for the clean sequence.
When to use Order ID Gap Finder
- You are checking files before an upload, import, share, or delivery.
- You want to confirm the result before sending it to another system.
- You need a copied result, downloaded file, or report that can be reviewed outside the page.
FAQ
Can IDs include prefixes?
Yes. The tool extracts numeric parts from values like ORD-1008.
Does it change my source data?
It reads the pasted text and produces a gap report.