ERP User GuideMicrosoft Dynamics NAV

Microsoft Dynamics NAV

VAT Registration No. Formats

VAT registration number is the unique number that identifies a taxable person (business) or non-taxable legal entity that is registered for VAT.

You can ask a customer to enter the VAT registration number, when:

  • A customer registers in a Sana webshop.
  • A customer creates an order as a guest without registration.
  • A sales agent creates a prospect.

In Microsoft Dynamics NAV, you can set up VAT registration number formats to ensure that a number entered by a customer corresponds to the standard format used in a customer's country. VAT registration number is validated in a Sana webshop based on the format set in Microsoft Dynamics NAV.

Set up VAT Registration No. Format

Step 1: In Microsoft Dynamics NAV click: Administration > Application Setup > General > Lists > Countries/Regions.

Step 2: Select a country and at the top click: Related Information > Country/Region > VAT Reg. No. Formats.


Step 3: Specify VAT registration number format for a country. Several formats can be added to each country.

The following symbols can be used to specify VAT registration number format for a country:

  • '#' - only a digit can be entered
  • '@' - only a letter can be entered (a-z or A-Z)
  • '?' - any character can be entered

You can use characters other than those listed above, if the characters are always present in a country's/region's VAT registration number.

For example, a period after each group of four digits must be entered as follows: ####.####.####.

ERP User GuideMicrosoft Dynamics NAV