3647444 - DIOT report Mexico - Temporary Unavailability and Filing Alternatives

The Mexican tax authority (SAT) has introduced a new DIOT platform and format.

Due to the scope and complexity of these changes, the updated DIOT report is not yet available. Our team is actively working on it. Starting August 1 2025, SAT accepts only the new version.

The legacy SAT route and the previous SAP Business ByDesign flow can no longer be used. Until the application update is released, customers must file DIOT directly through the SAT portal.

SAP Business ByDesign

Until implementation we suggest the following 2 alternative approaches:

Alternative 1 — Manual capture in SAT.

Sign in to the SAT DIOT portal with RFC + password or e.firma, create the period (for example: July 2025), capture supplier information (national/foreign/global) and monthly taxable bases/VAT buckets as requested by the portal, validate, submit, and download the official acknowledgment or receipt (acuse). This is best for small supplier volumes or quick corrections.

Alternative 2 — Batch upload (.txt) in SAT.

Export your July purchases/supplier ledger from SAP Business ByDesign, including supplier name and RFC (for MX) or foreign ID + country, the operation type (goods/services/lease), and monthly taxable base and VAT by SAT category. Map the data to SAT’s carga masiva layout and generate a UTF‑8, pipe‑delimited .txt (no header). In the SAT portal, choose Agregar desde archivo, upload the file, resolve validations, submit, and save the receipt. This option scales better for medium/large volumes.

We will publish release notes and configuration guidance as soon as the new Business ByDesign  DIOT report is available.

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