Hello viajesnico,
Thanks for your feedback.
Our plugin is only work for the variable products and you must need to configured all the settings as mentioned in the screenshot section.
Kindly please review all the configuration and let us know it is working or not.
We hope after configuring the correct settings it will work.
If still not working then, you can share the settings with us.
If all working then, kindly revise the review.
Thanks,
