Hello @arthrnvrn.
I am happy to assist you today.
This error is stating that since you set the “variation theme” as “Taille” you now need to provide the values for this “Taille” field in the listing profile.
First, you want to make sure that you selected a variation theme value from the section labelled “Select from allowed values” in the drop down selector of the variation theme field in the listing profile. Amazon only allows you to use approved values for this field.
If “Taille” is an approved value for the variation theme, then you will need to locate the “Taille” field in the listing profile and provide the values there. Most users will click the magnifying glass next to the field and then select their product attribute to have WP-Lister pull each value from each variation and submit them to Amazon.
If the field for this “Taille” field is a drop down, you can do the same by selecting a value in the “Pull value from product attribute” section of the drop down (only global attributes can be used here, custom attributes will not show in the drop down).
The variation theme tells Amazon what makes your variations differ. You then have to provide the values for the variation theme.
Kind regards,
John