Bitrix24 CRM has its own product catalog. You can create new products, edit existing ones, configure product parameters, add product variants, etc.
Add products
To add a new product, go to the CRM section > Products > click Add simple product.
Specify a short product description, set the price, and add an image. Once saved, the product will appear in your catalog.
Read more in the article - Add products to the catalog.
Add product variants
If you have similar products that can be different sizes, colors, brands, etc., you can add several product variants.
Read more in the article - Working with the product variants.
Working with the product grid
You can edit several products and their parameters by simply ticking them and clicking "Edit". No need to open each product card.
Read more in the article - Working with the product grid.