When you click on edit reconfiguration in Funnel, we will delete the old data from that specific data source and reimport data based one the newly chosen configuration.
To not lose historical data when you reconfigure we have chosen to disable reconfigurability for a data source with more than 37 months historical data. You will be able to spot this in the connect pop up and you can also read more about it in the article Limitations to reconfiguring a Facebook Ad data source. If you have any feedback or questions, please reach out to email@example.com. We