If you own a public repository, any Bitbucket user can fork that repository, make changes and send a pull request to you. However, you may want to keep your repository private. In that case, you can add users you know or invite users you think may want to contribute. For both public and private repositories, you can give users the permission to push changes directly to your repository or more, administrate your repository. To do this, you add a user and set their permissions.

• Go to the Admin page for your bb101repo repository.
• Click on Access Management.
• Start typing a username in the field provided.
  The system provides a dropdown list of possible users that match.
  If you don't know a username you want to add, try adding the tutorials user or atlassian_tutorial.
• Select a matching name from the dropdown.
• Select a permission:
  

  Level	This permissions allows a user to do the following:
  read	View and fork the repository code. All public repositories grant all Bitbucket users read permissions automatically. Read access on a repository also allows users to create issues, comment on issues, and edit wiki pages.
  write	Contribute to the repository by pushing changes directly from a repository on a local machine.
  admin	Can do everything a repository owner can except create or delete repositories. This means administrators can: Change repository settings. Add, change, and remove user permissions. Give other users administrator access.

  
  The system adds the user to the Users list with the permissions you selected. It also sends an email to the user informing them about the add.

If you make a mistake, delete the user and try again.