You can add your business registration number to your invoices by following the simple steps below.
If you added your business registration number during the Simple Invoice setup, it will appear as the last line in the company information field.
Step 1: Open Simple Invoice from your Shopify store’s “Apps” section.
Step 2: Click on the “Templates” on the Simple Invoice dashboard.
Step 3: Click on the Company Information section and add your business registration number. All text fields are inline editable.
Step 4: Click on the Save button.