Feb 15, 2019 05:46:58 AM by Sachee S
Feb 15, 2019 06:12:50 AM by Preston H
re: "As a client, How can I accept the job first and Then mark it as completed"
Sachee:
Everybody here at Upwork and in the Forum would like to see you succeed and have a positive experience while using the platform.
If you could provide a little more detail to help us understand your question, that could help.
I can tell, you, as a basic concept, that Upwork clients review work that they have received from freelancers before marking the work as completed and releasing payment.