The error code of 1603 occurs in QuickBooks when the QuickBooks faces internal damage, this is often the QuickBooks file being damaged. This issue can easily be resolved by using simple troubleshooting methods:
Reinstallation of the QuickBooks software is ought to solve the error code 1603. If this does not solve the issue that you have come across. It would be best for you to connect with the Quickbooks phone number. They would provide you with all the necessary guidance to overcome the issue.
This post was edited by maria johnson at April 1, 2019 5:19 AM EDT