To receive status checks and PR comments in bitbucket you will need to create an access token, the token should be named "Emerge Tools" and have the following scopes:

pullrequest
pullrequest:write
repository
repository:write

Once you have the token, open the Bitbucket integration settings on the Emerge Tools profile page and copy the token created as well as the name of the Bitbucket repo and project.

When uploading, set the repoName field to {YOUR_WORKSPACE}/{YOUR_REPO}