Hello Pedro

You can add additional data to the products. It will be preserved. Please follow this documentation:

Additional Data

Best regards

Hi, I saw that but won't work, need more specific fields with certain id's and values :(

The store have thousands of products, forcing the client to manage that having to write the correct things is a way to have troubles.

One of the fields for example would be to set the tax as I posted at https://www.joomshaper.com/forum/question/33957

It needs specific codes for each tax to integrate with invoicing software.

Tax per product will be added in the next update. Please allow us some time for this.