BusObjService error when signing in the Doc1 Designer

Products affected:  Doc1 Designer

Issue

When signing in the Doc1 Designer, the following error occurs: "An error occured while attempting to logon.  Please check BusObjService is running.".

Cause

SQL server authentication was set to "Windows Authentication Mode".

Resolution

UPDATED: August 30, 2019

In the SQL Server Management Studio, change the SQL server authentication setting to "SQL Server and Windows Authentication Mode" (see SQL documentation for specific details on how to do this based on the version you are using).