Make the changes in the Configurator Modeling Environment on the Item Attributes tab of the model's details.
You can make the changes in the Configurator Modeling Environment on the Item Attributes tab of the model's details, prior to releasing, to resolve the issue of incorrect minimum for one of your component attributes. Item attributes are user-defined attributes that you can add to an item-based model or its components to capture additional information or to control the configuration process1. You can modify the item attributes in the Configurator Modeling Environment after importing the item-based model structure from the Product Hub2. You can change the minimum value of the component attribute on the Item Attributes tab of the model's details3.
Reference:
Item Attributes
Import Item-Based Models into Configurator
Modify Item Attributes