There is a long list of causes that may trigger the QuickBooks error code OLSU-1013. Below are mentioned some of the primary reasons triggering QB error code OLSU-1013:
• Using an Outdated QuickBooks Desktop Version
• Entering incorrect login credentials
• Bank servers are unresponsive due to the maintenance
• Bank servers undergoing updates
• Banking and QuickBooks connection error
• Directory of the financial institution not updated
• Erroneous configuration of internet explorer
• Poor internet connectivity
• Bank account's issue in the company file
• Denying acknowledgment in the notifying alert on the online banking
• Unsuccessful updating attempt of important Bank related information