The TFS4JIRA synchronizer can synchronize multiple JIRA status values to one TFS state or multiple TFS states to one JIRA status. This gives more flexibility in the way states are handled. For example, you can map TFS states Done and Closed to a single Done JIRA status.
To map multiple TFS states to one JIRA state, first select a state in TFS Values listbox and then click Add selected value link (see screenshot below).
You can do the same in the opposite (TFS to JIRA) direction.
When multiple states are mapped, it is important to be able to determine what happens during the synchronization in the opposite direction - for example, if you map states Closed and Done in TFS to Done in JIRA, what is going to happen if you have TFS → JIRA synchronization enabled and there is a JIRA issue to be synchronized with status Done? In this scenario, the Default state from the mapping of TFS value is used (the default value is set in bold). You can select which value is set as default by clicking set as default link (see screenshot below)