How do I set up e-Invoice required fields for customers?

Use the KB “How to Set Up e-Invoice Required Fields for Customers”. The idea is:

• In QCA, you configure which fields are mandatory for e-Invoice (e.g. key tax identifiers

and contact info).

• When you create or edit a customer, QCA checks these fields so that customer records

are “e-Invoice ready”.

• If required fields are missing, QCA prompts you to complete them before allowing e-

Invoice submission.

This prevents failed submissions caused by incomplete customer data.