Users will receive the 1604 error code when the connection attempt to the accounting application has failed and the accounting application returns an error.

Important Notes

Error Code:

  • If the error code returned from the accounting application is NaN, null, empty, or equal to 0, Autofy will return the 1604 error code.
  • If the accounting application returns an error code, Autofy will display the error code provided by the accounting application instead of 1604.

Error Message:

  • If the accounting application does not return an error message, Autofy will return Failed to connect to endpoint.
  • If the accounting application returns an error message, Autofy will display the message provided by the accounting application.

Recommended Troubleshooting Steps for QuickBooks Desktop:

  1. Make sure QuickBooks is not running as the Windows Admin
  2. Review the local log file for any errors. If the errors are from QuickBooks, please refer to our QuickBooks troubleshooting docs here.

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