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MySQL error code

MySQL error 3897

MySQL server error 3897 is ER_CANNOT_GRANT_SYSTEM_PRIV_TO_MANDATORY_ROLE, reported with SQLSTATE HY000.

AuthId `%s`@`%s` is set as mandatory_roles. Cannot grant the '%s' privilege.
Error3897
NameER_CANNOT_GRANT_SYSTEM_PRIV_TO_MANDATORY_ROLE
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference