Quick Answer: How to Fix Error 164176
Error 164176 in CONTPAQi Factura Electrónica commonly indicates that the registered RFC does not match the RFC authorized by a single-RFC software license.
- Back up your company data.
- Open CONTPAQi Factura Electrónica.
- Go to Ayuda → Acerca de.
- Find and verify the RFC field.
- Enter the correct RFC associated with your license.
- Save the change and test invoice stamping again.
Important: Use only the RFC legitimately assigned to your software license.
What Does CONTPAQi Error 164176 Mean?
CONTPAQi Factura Electrónica is electronic invoicing software used to generate and stamp Mexican CFDI invoices. The stamping process, known as timbrado, involves validation and certification of the electronic invoice.
Error 164176 is associated with a licensing validation problem. One documented cause is an RFC mismatch in an installation using a license restricted to one RFC.
The accompanying message may read:
In English, this means that the licensing information is not valid. The software may open normally but fail when the user attempts to stamp an invoice.
Common Causes of Error 164176
| Possible Cause | What to Check |
|---|---|
| Incorrect RFC | Compare the RFC entered in the application with the licensed RFC. |
| Single-RFC license restriction | Confirm the company is authorized under the purchased license. |
| Incorrect license activation | Have an authorized administrator or support technician verify activation details. |
| Incorrect computer date or time | If Error 1111 mentions an expired token, verify system time and timezone. |
Method 1: Correct the RFC in CONTPAQi
This is the first recommended method when Error 164176 is caused by an RFC mismatch.
Step 1: Back Up Your Company
Before modifying license-related information, create a backup using the backup procedure available in your CONTPAQi installation. Make sure the backup is stored safely and can be restored if needed.
Step 2: Open the About Window
Launch CONTPAQi Factura Electrónica and open the Ayuda (Help) menu. Select Acerca de (About).
Step 3: Locate the RFC Field
Find the RFC information in the About window. Depending on the application version and screen size, you may need to scroll down to see the field.
Step 4: Verify and Correct the RFC
Compare the displayed RFC with the one associated with your purchased software license. If the value is incorrect, enter the properly authorized RFC.
Do not substitute an unrelated RFC or attempt to bypass the license restrictions.
Step 5: Test Invoice Stamping
Save the changes where supported, return to the invoice workflow and test timbrado again.
Before repeating the operation, check whether the original invoice was already stamped successfully. This helps avoid duplicate processing.
Method 2: Verify Your License Activation
If the RFC is correct but Error 164176 continues, your installation may require license verification or reactivation.
- Confirm that your license is valid for the company RFC.
- Check whether your subscription or license entitlement is active.
- Contact your authorized CONTPAQi distributor or administrator.
- Ask them to verify the activation and registered RFC.
- Test the stamping process after the license is confirmed.
Some technical guides describe using the revocalicenciafacturacion.exe utility for license reactivation. However, do not run this tool without an authorized technician’s guidance. License reactivation can affect access to the application, and the appropriate procedure may vary by version.
Method 3: Check Windows Date and Time for Error 1111
If the displayed error specifically mentions 1111 El licenciamiento no es válido, el token está expirado, CONTPAQi technical documentation describes correcting the computer’s date, time and timezone.
- Open Windows Settings.
- Go to Time & Language → Date & Time.
- Verify the correct timezone for your location.
- Enable automatic time synchronization where appropriate.
- Correct any inaccurate system date or time.
- Restart the application and test invoice stamping.
This method applies to the expired-token variant of Error 1111. It is not a substitute for correcting an RFC mismatch.
Error 164176 vs. Other CONTPAQi Stamping Problems
| Error or Symptom | Likely Area to Investigate | Recommended Action |
|---|---|---|
| 164176 / 1111 | RFC and license validation | Verify licensed RFC |
| 1111, token expired | System date and time | Correct timezone and clock |
| Stamping timeout | Network, proxy or processing delay | Check connection and CFDI proxy settings |
| Invalid XML | Invoice data or document structure | Review the XML validation message |
What If Error 164176 Still Appears?
If the error continues after checking the RFC, collect the following information before contacting support:
- The complete error message, including Error 1111 if shown.
- The installed CONTPAQi Factura Electrónica version.
- Whether the software uses a single-RFC or multi-company license.
- Whether the problem affects one company or multiple companies.
- Whether invoice stamping worked before a recent activation or configuration change.
Do not publicly share your license keys, certificate passwords, private-key files or confidential invoice data.
Official Documentation and Additional Resources
For software documentation and supported procedures, consult these resources:
- CONTPAQi Official Website
- CONTPAQi Factura Electrónica Documentation
- CONTPAQi Technical Support Tips for Error 1111
- Mexican Tax Administration Service (SAT)
More Troubleshooting Guides
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Final Verdict
Bottom line: Error 164176 in CONTPAQi Factura Electrónica is commonly linked to an RFC mismatch with a single-RFC software license. Start by backing up your company, checking Ayuda → Acerca de and verifying the registered RFC.
If the RFC is correct but the problem continues, have an authorized CONTPAQi technician check the license activation. If Error 1111 specifically reports an expired token, also verify the Windows date and timezone.
Editorial note: This guide summarizes documented troubleshooting procedures. Menu labels and available options may vary by CONTPAQi version. It is not affiliated with CONTPAQi or the Mexican SAT.
