554 System.DmlException: Insert (or Update) failed. ... FIELD_INTEGRITY_EXCEPTION

If you have a required lookup filter on the Account, Contact or Lead lookup fields on Case, an error will occur if a case is inserted or updated and the lookup filter criteria is not satisfied.

Symptoms
Solutions
Status
Additional Information
Title
554 System.DmlException: Insert (or Update) failed. ... FIELD_INTEGRITY_EXCEPTION
URL Name
554-System-DmlException-Insert-or-Update-failed-FIELD-INTEGRITY-EXCEPTION