Step 1: Initialize the Default Main Branch

Navigate to Azure DevOps:

Go to Azure DevOps and sign in with your credentials.

Select Your Project:

Choose Project1 from your list of projects.

Initialize the Main Branch:

Goto Repos > Files.

If the main branch does not exist, you will see an option to initialize it. Click on Initialize and follow the prompts to create the main branch1.

Step 2: Enable Squash Merge for the Main Branch

Navigate to Branch Policies:

Go to Repos > Branches.

Find the main branch and click on the … (ellipsis) next to it.

Select Branch policies.

Enable Squash Merge:

Under Policies, scroll down to the Merge strategy section.

Select Squash merge as the required mergestrategy2.

Save Changes:

Click on Save changes to apply the policies.

Step 3: Verify the Squash Merge Policy

Create a Pull Request:

Make achange in a branch and create a pull request to merge it into the main branch.

Complete the Pull Request:

Ensure that the pull request uses thesquash merge strategy by selecting Squash commit under the Merge type in the Complete pull request dialog