How to create auto number field that increments on each form submission?

Overview

The Auto Number field automatically assigns a sequential numeric value to each form submission. You define a starting number, and with every new submission, the number increments by one.

Example:
If a form generates coupons, the coupon ID could be assigned as CPN-001, CPN-002, and so on for each submission.

Steps

Step 1. Open the merge template where you wish to add this Auto Number field.

Step 2. Go to Automate Tab --> Configure.

Step 3. To to Manage Fields, click the Settings icon, and select Manage Fields.

Step 4. Click Create Main Field. In the Manage Fields dialog that opens, enter a name for the field, and select Auto-number as the field type, as shown in the image below, and hit Save. The field will be listed in the Main Fields tab. You can add it to your document from there.

Step 4 : Configure prefix / suffix and start value as shown

Additional Notes

The Auto Number field can be used to generate unique identifiers for each merged document. This allows you to:

Include a sequential number in the file name when saving merged documents.
Insert a unique ID directly within the document content, such as in a letter, invoice, or reference number field.

This ensures every generated document is easy to track, reference, and organize.

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