There are 10 feature branch, Now there is merge to the master branch from one of the feature branch. Now Auto merge should happen to all 9 feature branch from master branch. if there is conflict developer wil be notified.
Is this possible in Bitbucket or some external tool.
It is not possible in anywhere, since it is not actual flow.
In actual flow, it is individual feature branch owner/developer's responsibility to merge down these changes from master even though those changes doesn't have conflicts. This is because, the feature branch owner have to make sure that current feature is fully compatible with merged changes.
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