First error: INVALID_CROSS_REFERENCE_KEY, Assigned To ID: owner cannot be blank: [OwnerId] - Intellipaat Community
Changing the Contact owner results in an error when the Primary Contact is not related to the Account · Issue #2631 · SalesforceFoundation/NPSP · GitHub
System.EmailException: INVALID_CROSS_REFERENCE_KEY, invalid cross reference id : using Event in... - YouTube
api - Data insertion failed with salesforce inspector - Salesforce Stack Exchange
Salesforce: INVALID_CROSS_REFERENCE_KEY, invalid cross reference id on Order Item Insert - YouTube
apex - System.DmlException: Insert failed. First exception on row 0; first error: INVALID_CROSS_REFERENCE_KEY, invalid cross reference id: [] - Salesforce Stack Exchange
rest api - RecordTypeId and API INVALID_CROSS_REFERENCE_KEY - Salesforce Stack Exchange