We are having to use the AWS CodeCommit helper git-remote-codecommit since we are required to use MFA with the command line tools.

The problem is when using the system version of git it is unable to find the helper module where as in a terminal it's able to find it.

The helper is located at /usr/local/bin which is listed in the /etc/paths file.

Not sure what shell environment source tree uses when it executes it's git commands agianst the system git so i'm not sure what path it's using or what one to modify.

I was able to work around this by placing a symlink inside of Sourcetree in the git_local/bin directory and switching to use the embedded git. This solution isn't ideal as we'd have to add the symlink back after upgrades.