Invoice checklist
- Invoice Date must be increase with Invoice Number.
- Company Name, Tax Code, Address on Business Registration Form.
- Item must be identical to the contract .
- Include Contract number.
- VAT: use "/" in VAT fields.
- Sign on each sheet of the invoice, do not sign overlap.
- Mark on each signature
- Mark new address
- Send invoice to customer
For Error Invoice
- Revoke the error invoices
- Clamp 3 sheets of the invoice
