3818940 - [ADP] Error: "The Login ID for the employee with Employee ID XXXX has not been updated by the 300 or 305 record." in ADP Connector Employee Import

I am receiving warning from Employee Import and the warning message is "The Login ID for the employee with Employee ID XXXX has not been updated by the 300
or 305 record. Either update the employee's Login ID using an explicit 320 record or manually update the employee's Login ID in the User Admin." Can you help me understand what's the meaning of these messages from Employee Import?

ADP HR Connector - Employee Import Error. This error message was generated after the ADP HR Connector Employee Import runs , KBA , CON-INT , Integrations , Problem