TL;DR — Quick Summary

Cannot download CFDI cancellation ack: wait 72h, verify Cancelled status, correct RFC, valid e.firma on the SAT invoicing portal. IMSS Aspel SAT Mexico guide.

Diagram

SAT invoicing portal is essential for monthly and bimonthly compliance with IMSS, SAT, and employees. When a technical block appears, payroll, accounting, or the external firm cannot close the period: quota payments, pay stub stamping, or electronic accounting slip. This article documents real messages, menu paths, on-disk files, and recovery sequences tested on Windows 10/11 with official IMSS and Aspel installs.

The failure often appears after a Windows upgrade, PC replacement, certificate renewal, or incomplete backup restore. It does not replace vendor support; it is an ordered diagnostic guide to cut downtime and avoid inconsistent SUA.MDB, SAT XML, or stamped payroll.

Before changing configuration, back up working folders (C:\CobranzaSUA\, Aspel company .GBK, exported XML) and record the exact error text, program version, and affected period date.

The Error

When operating SAT invoicing portal, Windows or the validator may show:

“No se encontró el comprobante solicitado”

“El servicio de consulta no está disponible”

“La factura no se encuentra en estatus Cancelado”

“Error de autenticación con e.firma en el portal”

On some PCs the message is generic while useful detail sits in a local log, installer console, or Event Viewer. Capture the full string; the messages above point to root causes (permissions, missing components, stale data, or unmet IMSS/SAT rules).

If only one Windows user fails, compare permissions and profile; if all fail, check install integrity, pending update, or network/antivirus blocking: https://portalcfdi.facturaelectronica.sat.gob.mx/, Consulta > Facturas emitidas, Descarga XML cancelado.

Cause of the Problem

Insufficient PC configuration or permissions

Windows 11 and corporate policy block non-elevated installers, regsvr32, or writes to https://portalcfdi.facturaelectronica.sat.gob.mx/. Running without Administrator leaves OCX/DLL unregistered even after files copied.

Outdated or wrong-architecture platform components

Legacy IMSS apps need 32-bit pieces (SysWOW64, Jet 4.0, JRE 8 x86). Installing only 64-bit runtimes or Java 17+ breaks signature applets and Access databases.

Incomplete period data or authority mismatch

In SUA/IDSE, missing movement imports, old vigencia tables, or wrong employer registry block payment files. In Aspel NOI/CFDI, hand-edited perceptions, stale SDI, or unsynced SAT catalogs cause stamp/validation failures.

Network, proxy, and perimeter security

Downloads from sat.gob.mx, sipare.imss.gob.mx, or Aspel updaters fail on SSL inspection or firewall rules. Antivirus may block Java, SUA.MDB, or Catalogos during writes.

Partial backup restore

Copying only one .mdb, XML from another month, or mixing fiscal years leaves broken references. Restore the full backup set and re-import later IDSE/PAC movements.

Step-by-Step Solution

1. Freeze the period and back up

Close the app, end hung processes in Task Manager, and copy data folders to a dated path. For SUA, ensure nobody else uses C:\CobranzaSUA\ and remove orphan .ldb only when no session is active.

2. Verify official build and privileges

Repair/reinstall from the official IMSS or Aspel package Run as administrator. On Windows 11 set Properties > Compatibility on the main executable: Windows 8 mode, disable high-DPI scaling, run as admin if UAC requires it.

3. Register components and 32-bit runtimes

From elevated cmd (SysWOW64), run required registration, for example:

  • regsvr32 for OCX named in the error\n- Install Microsoft Access Database Engine 2010 Redistributable (x86) if Jet cannot open SUA.MDB

Check 32-bit java -version for IDSE; import e.firma into the Windows Personal certificate store (certmgr.msc).

4. Align period data before retry

In SUA: import EMA or IDSE .txt, refresh IMSS vigencia tables, recalculate quotas, generate test SIPARE. In Aspel NOI: rerun payroll processes without manual amount edits; validate XML against XSD. In COI/SAE: import chart before journals; sync SAT catalogs before bulk stamping.

5. Validate on portal or PAC

Upload files to the proper portal and confirm capture line, cancellation ack, or successful stamp on a pilot case before full batches.

6. Document and escalate

If IMSS/SAT service remains down after 24 hours or the database engine errors internally, open a ticket with employer registry, RFC, UUID, and exact version. Attach rejected XML, generated .SUA, and screenshots.

Prevention

  • Standardize PC images with 32-bit components, IMSS JRE, and antivirus exclusions on data paths.
  • Renew e.firma and SAT CSD 30 days early; update certificates same day in IDSE/SAE.
  • Never run SUA or open SUA.MDB from network shares or OneDrive; use local C:\CobranzaSUA\ only.
  • Schedule backups after closing apps and monthly SAT catalog sync in Aspel.
  • Reconcile Aspel NOI payroll with SUA and CFDI before paying quotas or dispersing net pay.

Summary

  • Messages in SAT invoicing portal often combine Windows permissions, 32-bit components, incomplete period data, or expired SAT catalogs.
  • Diagnostic order: backup, administrator, OCX/Jet/JRE registration, IDSE import, recalculation, portal/PAC pilot test.
  • Key paths: https://portalcfdi.facturaelectronica.sat.gob.mx/, Consulta > Facturas emitidas, Descarga XML cancelado.
  • Keep evidence (XML, .SUA, screenshots) for IMSS/SAT audits.