Mixed DML Operation

Apex code attempted to perform DML on setup objects (such as User or Group) and non-setup objects in the same transaction. Salesforce disallows mixing these to avoid locking issues; separate them using @future or Queueable Apex.

References

developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_dml_exception_handling.htm

In this namespace

← previous MALFORMED_QUERY Malformed Query next → QUERY_TIMEOUT Query Timeout

INVALID_QUERY_LOCATOR INVALID_SESSION_ID INVALID_TYPE MALFORMED_ID MALFORMED_QUERY MIXED_DML_OPERATION QUERY_TIMEOUT REQUEST_LIMIT_EXCEEDED REQUIRED_FIELD_MISSING STORAGE_LIMIT_EXCEEDED UNABLE_TO_LOCK_ROW