You will need the Full Write Service Plans permission to split and unsplit a team.
Changing team split settings on a service type affects ALL service plans of that type (past and future). This article goes over how the system handles splitting and unsplitting teams that have assignments and/or needs.
Note: Performing this action does not send any new serving requests for modified assignments. It is up to you whether to contact the volunteers on the split or unsplit team at that time.
Splitting
When a team is split, the system creates a separate sub-team for each service time on a plan. If there are no service times on a plan, then the team will not appear for scheduling until at least one is added. The split is done as follows:
Needs
The number of volunteers needed for a position is divided evenly across each service time (rounded up). For example, if originally 4 greeters were needed and there are 2 service times on a plan, then both times will need 2 greeters after the split. Similarly, if 4 greeters were needed and there are 3 service times on the plan, then each service time will need 2 after the split (4 / 3 is 1.33, and rounding up makes it 2).
Assignments
Scheduled volunteers are assigned to the split teams that match the times they were originally scheduled for. Any non-service times they had are assigned across each split team they are on. The status for each assignment will match the original. For example, if their status was Accepted, then each of their assignments on the split teams will also be Accepted.
Warning: If a volunteer wasn't scheduled to a service time, they will no longer be scheduled to the team after the split, since there is no split team that would apply to them.
Assigned Times
If the team was set as an assigned team on a plan time, then all the split teams will also be assigned to that same time. The only exception is service times. Since split teams are already meant for a specific service time, having them as an assigned team to that same time is redundant, so those are removed.
Unsplitting
When a team is unsplit, the system merges the sub-teams together as follows:
Needs
The number of volunteers needed for each position across all service times are combined. For example, if there are 2 service times, and 3 greeters are needed for the first service and 4 are needed for the second service, the merged team will need 7 in total.
Assignments
Volunteer assignments are merged into the single team and the assigned times are the same as they were on the split teams. Declined assignments are removed from the team. If a volunteer accepted one time, and others are pending a decision, all times will be accepted after the merge.
Assigned Times
If any split team was set as an assigned team on a plan time, the merged team will remain as an assigned team.
Notes
Due to how teams are split and unsplit, it's not guaranteed that splitting a team and then unsplitting later will result in needs and assignments being the same as before the original split.