Naming Series as Per VAT or GST Rules

A tax invoice must have a consecutive, unique serial number in accordance with Rule 46(b) of the CGST Rules 2017 (and comparable VAT compliance regulations in other states).

The rules specify:

• Maximum 16 characters allowed.
• Can contain slashes (/), hyphens (-), numbers, and alphabets.
• There should be no repetitions or breaks in the running sequence. This Validation is required by ERPNext. An error message will appear when you save or submit a sales or purchase invoice if your series name is not compliant.

Step 1: Open Naming Series

1. Go to Settings > Naming Series.
2. Select the transaction type, such as a purchase or sales invoice.

Step 2: Configure a Valid Series

1. Add a new naming series within the 16-character limit.

Expamle:

• PK → Invoice prefix
• .YYYY. → Fiscal year (auto-fetched)
• .##### → Consecutive numbering

2. Make this the first option on the list.
3. To make it the default series, uncheck User must always select.

Follow for more

• Go to Zikpro ERPnext Demo
• www.zikpro.com