In case of Mapping Set related tasks reviewers are allowed to select the mappings they would like to continue publishing. With this functionality, individual mappings from a task can be approved and promoted to the MAIN repository for publication, while other mappings that are unfit for publication can be rejected.
For tasks where Mapping Set has been set as a Code System, the changes tab looks like in the picture below.
In the Review Changes Tab, only those components can be rejected or approved, that have been modified under the task. So in case a new Mapping Set has been created under the task, the whole Mapping Set could be rejected, but also its individual mappings as well. In contrast to that, if a mapping has been added to an already existing Mapping Set, only that particular mapping can be rejected by the reviewer.
The picture below represents an example of this scenario.
