Transferring Live data from existing Live site(Ver.3.9) to new Website(Ver. 4.50.2)

So we have a live website(ver. 3.9) with customer activity that we would like to transfer to a new upgraded Version that we have in development that is version 4.50.2 when we are finished with our customizations. We would like to transfer all the activity that occurred on the old live website since the start of the upgrade and development of the newly upgraded nopcommerce website. What would be the proper approach for all the sales information and new customer data. I notice that there is an export utility for orders and customers but there is no import utility for that data.

Thanks!
Rob

Depends on if you have customised database
If not you can run the Update Scripts
https://github.com/nopSolutions/nopCommerce/releases
Each vesion one after the other 3.9 to 4.0, 4.0 to 4.1, etc

Otherwise I have an import plugin https://www.selectsystems.com.au/import-export-manager

Yidna wrote:
Specifically I need to export out of version 3.9 any new customers that have been added or updated since a certain time. As well as any orders, transactions, wishlist creations etc.
into version 4.50.2. I have already done the successive updating to a copy of this site that is currently live with version 3.9 . Once the customizations to the updated copy are complete we will update the data with data from the current live site that is version 3.9 and then go live with that website.

Thanks!
Rob

You either need to redo entire 'upgrade' (i.e. backup/restore/successive updating of SQL scripts), or maybe use plugin as per above.   (The alternate would be to create custom export / import with SQL, but that requires good knowledge for SQL and the nopC DB structure / integrity)