How to decline politely to freelances' applications?

[#1]

Hello everyone, 

I'm new in Upwork, as a (potential) client.
I have posted an offer for a freelance developper +/- 8 days ago, but our project has finally changed and we don't need a freelance anymore.
I'd like to send a message to the freelancers that have applied to our offer.
It seems I can't... Or?
Is there somebody here that can let me know how to decline politely their applications, and apologize?

Thanks a lot in advance!
Juliette. 

[#2]

Alchimie,

Decline and leave a message or just decline.

[#3]

There's no need to decline each proposal if the client closes the job. 

[#4 · Accepted solution]

That happens, a polite way would be to close the job posting
https://support.upwork.com/hc/en-us/articles/17933151309203--Edit-or-close-a-job-post
That would notify everyone who applied that you no longer need to hire for that post and would remove the post so that you do not receive new applications.

[#5]

Thanks Luqman!
This, was already done (removing the job posting).
I did not know that it would notify everyone, that's great then! 🙂
Thanks again! 👍

[#6]

Closing a job does not actually notify anyone.

They will just see this when they visit the job post.

[#7]

That depends on your notification settings. You can receive notifications when a job you've sent a proposal on is canceled or closed. And, the proposal is moved from your current listing to archived when the job is closed. 

[#8]

Once in a while, I do receive very nice messages from clients who have decided not to give me a job.

It makes me happy to see that some clients understand that this may disappoint freelancers. But to tell you the truth, as a freelancer, you tend to get used to this kind of situation and not take it too seriouslyl