Users were added (Master and Slave server), after starting replication. There was an error.

Slave_IO_Running: Yes Slave_SQL_Running: No Last_Error: Error 'Operation CREATE USER failed for 'xxxxx'@'localhost'' on query. Default database: ''. Query: 'CREATE USER 'xxxxx'@'localhost' IDENTIFIED WITH 'mysql_native_password' AS '*xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx''

Solution to the problem:

 STOP SLAVE; RESET SLAVE; CHANGE MASTER TO MASTER_HOST='xxx.xxx.xxx.xxx, MASTER_USER='xxxxxx, MASTER_PASSWORD='xxxxx', MASTER_LOG_FILE = 'mysql-bin.0000xx', MASTER_LOG_POS = xxx; START SLAVE;

Replication is working.

 Slave_IO_Running: Yes Slave_SQL_Running: Yes

But when comparing databases through mysqldiff. Some tables were missing.

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