TL;DR — Quick Summary

Fix SUA IMSS vigencia table update errors: verify base version, apply patch, check permissions, and back up before loading current fiscal-year quota tables.

Diagrama

The error updating IMSS vigencia tables in SUA appears when the system cannot load quota rates, UMA, and fiscal-year parameters for the current exercise. Without current tables, worker-employer calculations, quota determination, and SIPARE file generation produce wrong amounts or stop entirely. This failure is common at the start of a new fiscal year or after applying a partial patch without the required base version.

The Error

When running Utilities > Update vigencia tables or opening SUA after a patch, you may see:

“Error updating IMSS vigencia tables”

“Could not copy table file. Access denied”

“SUA version is not compatible with vigencia tables”

“Error reading quota tables. Reinstall the update”

Sometimes the update finishes without an error, but Help > About still shows an older version and quota reports reflect the previous year’s UMA.

Root Causes

Outdated base version

IMSS publishes base and incremental updates. Applying only the patch on an incompatible base prevents vigencia tables from integrating correctly.

Insufficient Windows permissions

SUA writes table files under C:\CobranzaSUA\. Running without administrator rights, or antivirus blocking .DB/.DAT files, causes access-denied errors during table copy.

SUA open on another workstation

An active SUA instance locks SUA.MDB and table files. Updating while another user has the program open — even minimized — interrupts the process.

Incomplete or corrupt patch

Interrupted downloads or bad USB copies leave half-written tables. SUA detects invalid checksums and aborts the vigencia update.

Post-migration conflicts

Moving C:\CobranzaSUA\ to a new PC or server with mismatched SUA versions or NTFS permissions blocks the updater from replacing current-year tables.

Step-by-Step Fix

1. Close SUA and back up

Close SUA on all network workstations. Copy the full C:\CobranzaSUA\ folder — especially SUA.MDB — to external storage dated today.

2. Install base and patch in order

Check imss.gob.mx > Employers > SUA. Install the required base version, then the latest incremental patch, always as administrator.

3. Run table update

Open SUA with right-click > Run as administrator. Go to Utilities > Update vigencia tables and complete the wizard without interrupting.

4. Verify UMA and test quotas

In Configuration, confirm the current daily UMA. Generate a test quota report and compare rates with IMSS published documentation.

5. Recalculate open period

Run Determination of quotas > Calculation for the current bimestre. Validate the SIPARE file on the IMSS portal before bank payment.

Prevention

  • Update SUA and vigencia tables within the first week of each new fiscal year.
  • Document base version, patch, and table update date in an internal log.
  • Exclude C:\CobranzaSUA\ from antivirus on server and workstations.
  • Schedule automatic SUA.MDB backups before every IMSS patch.

Summary

  • Vigencia table errors usually stem from wrong base version, Windows permissions, or parallel SUA sessions.
  • Back up C:\CobranzaSUA\ before updating to avoid losing affiliation movements.
  • Install base + patch in order and run table update as administrator.
  • Validate UMA and recalculate the open bimestre after every update.