ForceID feature when uploading new product using ProductFactory

[ishgoel]

Hi!
I need to use "ForceID" feature for inserting custom product id (not the auto-incremented ids) through AddList function in ProductFactory. But AddList function is only auto-incrementing product id.

ForceID feature works when uploading from the PrestaShop backoffice, but I am unable to do so from the web-service.

Found a solution to the above issue in the following link BUT couldn't implement:
http://stackoverflow.com/questions/13528720/prestashop-adding-product-using-module-cant-force-product-id

Any suggestion?