어느날 이런 메일이 왔습니다. 사실 인지를 못하고 있었다가 80%, 100% 두가지 메일이 오고나서 월 사용량이 모두 소진되었다는 것을 알았습니다.

Hi Nathan!
We just wanted to let you know that your workspace has reached 80% of it's monthly workflow executions limit (8000 out of 10000 executions). 
You have 2000 executions left this month. Your limits will reset at the 1st of next month. 
Upgrade now to ensure you have enough executions! 

UPGRADE PLAN

All the best,
Anna