Applying Your Profile to a Product
Once you have created your customer group and added your selected customers to that group, you are ready to apply your profile to a product.
Open your Catalog > Products page and choose a product. Click Edit, then click the Profile tab.
Click Add Profile, and you will see dropdown boxes appear that will allow you to choose which Profile and which Customer Group to apply to that particular product. When you are finished, click Save.
Your new Profile has now been applied to your selected customers for your selected product.