Hi @Massimo_Coppola - Glad to hear the permissions are working for you now. Yes, we have many customers who use Parabola to connect to the Shopify API (in cases where our Shopify integrations don’t yet support a particular use case).
I took a look at the Products API docs from Shopify: https://shopify.dev/docs/admin-api/rest/reference/products/product
It looks like the reason why some of the fields didn’t get passed to Shopify successfully is because those are Product Variant fields.
We can help you figure out the best way to update the product variant information in Shopify as well. Will there only be one variant per product in your case?
Also, try using our Pull from Shopify step and pull in Product data with Variant detail. Let me know if you see any variant information for the new products you just created via the API.