What is the product supplier reference (MPN code) for?
MPN (Manufacturer Part Number) is the reference assigned by the manufacturer. It is not necessarily your internal reference or the reference used by your supplier.
Which field does the module read?
The two export modes read different fields:
- Product export without splitting combinations: on PrestaShop 1.7.7 and later, the module reads the product's native MPN field.
- Export each combination: the module reads the supplier reference associated with that combination and the default supplier. Filling only the combination's native MPN is insufficient for this path.
Use the genuine manufacturer reference in the field actually read.
Check exclusions
In Feed management → Product exclusion rules, the missing-manufacturer-reference exclusion can prevent export when the field being read is empty. Regenerate and inspect g:mpn and the diagnostic for that item.
Do not fill a missing reference with an invented value. Check requirements for the product and catalog use in the Meta specifications; do not assume a universal “any one of brand/GTIN/MPN always suffices” rule. See also GTIN and brand.


Other FAQs in this category
- How to send quality images to Facebook?
- What is the product GTIN code for?
- How to indicate the availability of my products on Facebook?
- What is the product condition?
- What are Facebook's product data guidelines?
- What are Facebook's requirements for shipping weights?
- What are the guidelines for product titles?
- What are the price guidelines to follow?
- Do I have to provide the brand of my products in my feed?
- Do I have to provide product colors in the feed?
- Do I have to include product sizes in the feed?
- What are the Facebook's requirements for product description?
- Is it necessary to indicate an age group for using my products?
- Do I have to indicate the gender for which my products are made?
- Do I have to provide information about my product patterns?
- Do I have to provide information about my product material?
- What is the purpose of assigning a "shop" prefix to product IDs?
- What is the "product type" attribute?