ARCA Introduces New Validations in the Export Manual V3.1.0

The Customs Revenue and Control Agency (ARCA) in Argentina has announced the update of the Electronic Export Invoicing Developer Manual V3.1.0. This document is essential for taxpayers operating with the WSFEXV1 web service, used to issue electronic invoices for export transactions.

Key Changes in the New Version

The update introduces two new validations in the <FEXGetLast_CMP> method, which allows users to query the last invoice approved by the system.

Error 1606 – Validation of the <Cbte_Tipo> field
The system will return an error if the invoice type entered does not match the authorized types:

• 19: Export Invoice “E”
• 20: Debit Note for Foreign Transactions
• 21: Credit Note for Foreign Transactions

Error 1607 – Validation of the <Pto_venta> field
This error occurs when the point of sale entered is invalid or not authorized for export invoices in the Web Services platform.

Effective Date of the Update

The new version of the manual was published on August 25, 2025.
In practice, taxpayers will not need to make immediate changes unless inconsistencies arise related to the new error codes.

¿How Can LLB Solutions Help You?

At LLB Solutions, we closely monitor every regulatory update that may impact your invoicing and international trade processes.

If your company uses Business Central to manage Electronic Export Invoicing, our team can help you:

• Implement the required updates.
• Avoid errors that may affect invoice issuance.
• Ensure the continuity of your international operations.

Contact us and make sure your invoicing is always aligned with ARCA’s updates.

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