Error: INVALID_QUERY-FILTER_OPERATOR in Salesforce Laura March 30, 2019 03:34 Updated Follow This error message is normally triggered when zero contacts have been selected. Please return to your Salesforce view, use the checkboxes to select contacts, then try again. Related articles Can I have more than one Admin on my team? How to use process builder to update contacts based on completed tasks in Salesforce. Comments 0 comments Please sign in to leave a comment.