Yes i see. I have all products in the database with all data. A lot of products even have the combinations, but it has been done manually product by product. Thats the only way to be able to give a variant the proper GTIN.
It just would be easier to do this by script as we now have 4.000 products without combinations.
You got any idea why not? It seems like a feature that we will use always on all products. Actually i don't understand why its not default. Why do you even have to click a button to generate these combinations. We need combination to use GTIN on the variants.