I have a client website that is running on Prestashop v1.4
Because it has been "maintained" by a previous developer who modified core files and generally made a big mess, the upgrade module no longer works properly. Given that the client is handing over the project to me, and wants a new theme implemented, I am moving straight to Prestashop 1.6 and using the Compass/Boostrap 3 default theme as a base.
Obviously, the important thing is that the clients data should be migrated. So my question is, is it possible to make a clean export from Prestashop 1.4 of only the actual sales and website access data, skipping anything like module configs etc, in order to reimport it all to Prestashop 1.6?
This way, my client can keep his order data, access data, products, payments etc, and I can build a new theme without having to fight with an old installation or theme that have hardcoded rubbish in it.
This module provides an automated method migrate products, customers, orders, categories, customers password and other data from Prestashop to Prestashop.
http://addons.prestashop.com/en/8934-prestashop-to-prestashop-migration-tool.html