User Help > Managing Source Files as Members > Resolving Merges
  
Resolving Merges
During the process of merging revisions you may decide to suspend the operation and mark the working files for merging at a later time. Working files that are marked for merging appear with an unresolved merge symbol () in the delta column in the Sandbox view.
If you have begun the merging process but decided to use the Mark for Later Merge option to postpone the completion of the merge process, when you are ready to merge the selected revisions you can use the Resolve Merge command to do so.
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You cannot suspend a merge operation and mark the working files for merging at a later time when using a third party merge tool.
To resolve a merge in the GUI