0402·The buyer registration number has no valid access token

What this means

Certain transaction types require the buyer to be integrated with digital invoicing themselves. Where that applies, FBR checks the buyer side too, and rejects the invoice if the buyer number is malformed or has no authorised integration.

Why it happens

• The buyer is registered for sales tax but has not completed digital invoicing integration.
• The buyer's registration number is malformed.
• A transaction type requiring buyer-side integration was used for a buyer who cannot support it.

How to fix it

1. 1Verify the buyer's registration number format and status before invoicing.
2. 2Confirm the transaction type is appropriate for that buyer.
3. 3Where the buyer is genuinely not integrated, use a transaction type that does not require it.

Related errors

• 0401The seller registration number has no valid access token
• 0106The buyer is not registered for sales tax
• 0053Buyer registration type does not match the buyer's profile