In a situation where you have been invited to or have viewed an opportunity, but you are no longer interested in submitting a bid for that opportunity, you are welcome to notify the buyer directly that you are no longer interested in submitting but this normally isn't a requirement unless noted in the RFx documents.

If the project specifically asks for an Intent to Bid, you can select the "No" button to show that you aren't interested in bidding on the opportunity, as long as the Intent to Bid period is still active. The Intent to Bid can be found under the Submissions heading.

If you do not see the screen above, then you do not have to express that you have no Intent to Bid unless the buyer specifies that you should submit this answer elsewhere (e.g., by emailing them or uploading a file).