Shopify collection is a simple way to organize your products. To add the product to collection, please, go through the following steps:
Open product (Fig. 3.6 - [ 1 ] - [ 3 ] ) or add a new product (Fig. 3.6 - [ 1 ] - [ 2 ], [ 4 ])
In the right sidebar menu, click on 'Collections' search input (Fig. 3.7 - [ 5 ]) and choose the collections for this product (you are able to choose multiple collections for a single product) (Fig. 3.7 - [ 6 ]). All collections that were selected are shown below the 'Collections' search input (Fig. 3.8 - [ 7 ])
Notice! You need to have already created collection before adding product into this collection. How to create a new collection is explained in the special section of this documentation