Incoming change sets
A change set is classified as incoming when it is present in a workspace flow target but not in the workspace itself.
In the Pending Changes view, incoming change sets are visible in the Incoming folder for the component. You can accept an incoming change set to add it to your repository workspace and load it into your sandbox.
If an accepted change is causing problems in your workspace, you can discard it. This action unloads it from the sandbox, removes it from the repository workspace, and returns it to the Incoming folder, effectively undoing the accept operation that added it to your workspace.