For a successful export to Shopify, the parent article in PlentyONE must have a name (in the field "Name 1") and an article description. Without these two pieces of information, the associated variants will not be exported.

It is particularly important that both texts are maintained in the language you use for the export to Shopify.

How to maintain the texts:

1. Open the desired article in the menu Article > Article.
2. Switch to the Texts tab.
3. Select the correct export language in the toolbar.
4. Fill in the fields Name 1 and article description.
5. Save the entries.

Note: Name 1 can also be another field, which you map via 
Setup > Omni-Channel > Shopify Input Field Mapping by selecting Product Title/Product Description to map other fields such as Name 1 / Name 2 / Name 3 / Attribute