Creating products on Prestashop from Dolibarr is currently not supported. Only updates to stock, price, and weight are possible in this direction.
This choice is based on a functional reality: product management and their variations differ significantly between Dolibarr, Prestashop, and even between different connected Prestashop stores. (For example, one Prestashop store may manage products with variations while another store manages the same products without variations).
These differences make it complex to harmonize attributes and characteristics between systems or sites. The goal is not to overload Dolibarr with unnecessary synchronization data, so this limitation naturally applies.
Attempting to unify these logics would force compromises that could harm data integrity or the specifics of each platform. Therefore, we opted for a more consistent approach: let each software manage products in its own way while focusing on the essentials, namely reliable and fast synchronization of key information such as stock, price, and weight.
This choice is also based on feedback from solutions tested before the creation of PrestaSync, which led to undesirable automatic synchronizations that indiscriminately erased hours of hard work. A software should be an ally that makes our work easier, not an obstacle that complicates it.
From experience, if you plan to create products in bulk on Prestashop, it is better to opt for imports via CSV files, which, when carefully managed, allow you to control associated data, such as categories, tags, features, or attributes...