An attribute is a characteristic of a product, such as its colour, size, or description. Some attributes are pre-installed in the system, while others can be added to meet specific requirements. To modify your items, you can add, change, or remove product attributes in Magento 2.
Go to Stores > Attributes > Attribute Set in the Admin sidebar.
Select Add New Set from the drop-down menu.
Give the attribute set a name.
To use as a template, set Based On to an existing attribute set.
Save the file.
Go to Marketing > Channels > Amazon in the Admin sidebar.
In the left-hand menu, go to Attributes, find an Amazon attribute, and click Edit in the Action column.
Set Is Active to Yes or No to activate or stop the syncing of Amazon information to the connected Magento property.
Product attribute sets are used in Magento 2 to make product management easier by eliminating the requirement to give each attribute to the product individually.