Issue with App password and Sourcetree

[AndrewAT]

I followed this instructions to update my Sourcetree with App password but when I try to push my local repositories from Sourcetree to Bitbucket account I get again this error:

What am I doing wrong?

[Ben]

G'day Andrew!

The most common issue customers are experiencing related to authentication in SourceTree is, as you stated, 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 specifically for SourceTree, please follow these accordingly and this should resolve the issue:
https://community.atlassian.com/t5/Sourcetree-articles/Bug-Fix-Sourcetree-for-Windows-authentication-error-when/ba-p/1965968

Cheers!

- Ben (Bitbucket Cloud Support)