Argentina Introduces New Validation Rules for Electronic Export Invoice Web Service (WSFEXV1)

• Argentina’s tax authority introduced new validation rules for the Electronic Export Invoice web service on August 10, 2025
• The changes affect the B2B electronic export invoicing process
• Version 3.1.0 of the developer’s manual includes these updates
• New regulation adds control mechanisms for processing export documents via web services
• Two new input validations added to the FEXGetLast_CMP method
• Document Type validation requires value to be one of the enabled types 19, 20, or 21
• Invalid document type returns error code 1606
• Point of Sale validation requires value to be valid and registered for Export Receipts Web Services
• Invalid point of sale returns error code 1607
• Companies may need to adapt systems to handle new validations and error codes

Source: docnova.ai

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.

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