I cannot pull/push with sourceTree but I can login fine in bitbucket.

[rodismusic]

I tried to generate App password on Atlassian and used that.  Then I went to sourceTree Options/Authentication and I click to refresh password. Entered that generated password and it said Athenticated! Then I go to pull and it failed.  This used to work with a previous version of sourceTree!

It fails even if I put in my Atlassian password!!  

[Michał S]

On bitbucket.org go to left panel and click Personal Preference. In Left panel then click App Passwords.  Create your password.

Go back to SourceTree and in the SourcePath paste "https://USERNAME:APP_PASSWORD@bitbucket.org/workspaceID/reposlug.git". Where USERNAME is your bitbucket username and the APP_PASSWORD is the password you have generated in previous step.

This worked on my Windows, after 2h fight :(

[Ben]

G'day! 

Thank you for contacting Bitbucket Cloud Support.

The most common issue customers are experiencing related to authentication in SourceTree is due to the deprecation of GIT username/password in favour of App Passwords:
https://bitbucket.org/blog/deprecating-atlassian-account-password-for-git-and-bitbucket-api-activity
We have a blog post however which explains the steps to troubleshoot this issue, please follow all of these steps accordingly (including uninstall/re-install) and this should resolve the issue:
https://community.atlassian.com/t5/Sourcetree-articles/Bug-Fix-Sourcetree-for-Windows-authentication-error-when/ba-p/1965968

When you are authenticating GIT over HTTPS to push/pull you will need to update your remote URL's to include the AppPassword:

git remote set-url origin https://USERNAME:APP_PASSWORD@bitbucket.org/workspaceID/reposlug.git

The same applies when performing git clone:

git clone https://USERNAME:APP_PASSWORD@bitbucket.org/workspaceID/reposlug.git

I would suggest ensuring also that all stored passwords related to authentication over GIT are cleared from your machine (ie Credential Manager for Windows, Access Keychain for Mac or /etc/shadow folder for Linux).

Cheers!

- Ben (Bitbucket Cloud Support)