At the moment when you set up a connector you can select what period you require for historical sync. But after you have synced with this connector, you are not able to change the historical sync period. it would be beneficial to be able to make this change as the business requirements may change over time.

The current support solution is to create a new connector with the new historical sync period and delete the old one. This is a messy solution as you now also have to create a new table for it to land into which then means more admin work on the DB side and moves us further away from what Fivetran is meant to do which is provide simplicity in landing data into the DB.