I'm trying to update a checkbox in Salesforce through Demand Tools. My file literally only has the ID of the contact and the value for the checkbox to be true.
I am getting an error but not on every studnet and I don't know what this error means. Any help would be greatly appreciated.
2018-02-22T10:34:15-05:00,Batch Update,"Has_Visited_Campus__c:True ",Contact,Update,003o000001DcG1B,,,,"addToCList: execution of AfterUpdate<LF><LF>caused by: System.QueryException: List has more than 1 row for assignment to SObject<LF><LF>()<LF>"