Why am I seeing Error: INVALID_QUERY-FILTER_OPERATOR in Salesforce? Laura May 01, 2020 18:30 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 Salesforce Error: No Contacts Selected What does the Dial Session window look like in Salesforce? Installing PhoneBurner for Salesforce Lightning Saleforce 4.0 information Can I have more than one Admin on my team? Comments 0 comments Please sign in to leave a comment.