I am pretty new to SharePoint, Is there a way to sync or connect two lists that resided in different SharePoint Online sites?
You can sync two lists from different sites through Microsoft Flow.
Please following steps:
1.Create new list named "Sync1" in the SharePoint site
2.Create new list named "Sync2" in other SharePoint site and create same columns as the "Sync1" list
3.Create a Microsoft Flow
4.Save and Test this flow
======================== Update Answer ===========================
My design philosophy:
First, automatically trigger the Flow every 5 minutes
Then, get all items in the sync1 list(Get items) and get all items in the sync2 list(Get items 2).
Then, traverse to delete all items in the sync2 list, and re-create the same items in the sync1 list in the sync2 list
Finally, run the Flow again in 5 minutes.
========================= Updated Answer 2 ==========================
Please use the below flow:
Sync1 & Sync2:
When I delete an item in the Sync1 list, the corresponding item in the Sync2 list is also deleted.
For example, delete item: Test222.