How do I know that client is received my proposal?

[#1]

I have submitted a proposal to a client. I have checked the same job after one day. Still I can see Invite Sent as 0. Then where is my proposal landed? How do I know whether my proposals reached the client?

[#2]

There is no way to check either client have checked your proposal or not. The case which you are discussing can be that the client have posted the job again. Because when a client don't get the right freelance then he post the job again so that he could get proposal from some new clients.

[#3]

1. There is, it's in the stats.

2. Clients are not allowed multiple identical job posts. If you see them, flag them. 

[#4 · Accepted solution]

Invite sent has nothing to do with proposals. This is when the client sends invites to freelancers on his own accord, not following a proposal. 

Clients receive all proposals.

You can check your stats how often they are seen. 

[#5]

Thank you for the clarification, Martina.