Let's say that I want to sync Tickets, Ticket Types, Users and Queues. Tickets and Ticket Types are connected, so I want to join them in a first sync. Users and Queues are related, so I want to join them in a second sync. But, I want both syncs to start at the same time, so that I cut in half the processing time.

Right now, even though the description of the TriggerOfflineDataSync action clearly states "Action where you can invoke OfflineDataSync asynchronously", the syncs run one after the other, as you can see in the browser network tab.

Some of the syncs rely on endpoints that could take some time to respond, so not doing this concurrently makes our apps feel slow. Users will have to wait extra time to have data available to start working.