When in the evening, send a thank-you message to the leader.

1. Send a thank-you note before the end of working hours at night, for example, between 6 pm and 8 pm.

2. 8: 00 to 9: 00 after dinner time is a more suitable time to send thank-you messages. The leaders relaxed and had time to check the information.

3. Avoid sending messages too late, so as not to disturb the leaders' rest time. It is more appropriate to send a message before 10 in the afternoon.