Sequencing on Shopify is handled by the Nosto App when Category Merchandising is enabled through the user-interface. 

What happens on Shopify when Sequences are created? 

When creating a Sequence within Category Merchandising additional clone collections will be created within Shopify to mirror the configured Sequences. 

Learn more about creating sequences here: Get Started with Category Merchandising

Clone collections can be seen and interacted with within the Shopify admin interface under Products -> Collections. Nosto clone collections are clearly separated from the general collections by the Nosto logo as the image field. 

When inspecting individual clone collections, they look identical to any other collection managed manually, but programatically created by Nosto. 

How are users redirected between different collections?  

Nosto handles redirecting of users based on their current segment behind the scenes by using a Javascript redirect. This means if a user clicks on a link to the Clothing collection, they will be redirected to the most appropriate Sequence configured. 

Clone collections are always denoted with an auto-number suffix eg. clothing-1, clothing-2 etc.

Generated clone collections will always refer to the original clothing collection by using a canonical URL, clearly signalling search engines such as Google or Bing to refer to the original page when crawling. 

Learn more about this here: Shopify Sequencing and SEO

How is attribution handled?  

When clicking on a product discovered through a Nosto Sequence a URL parameter will be present that denotes that the product was found through Category Merchandising, but also which Sequence it was discovered from. The attribution parameter will allow Nosto to calculate performance metrics such as views, clicks, sales etc. that happened through Category Merchandising. 

Attribution parameter will persist if a user interacts with filtering within the collection page, however if a user chooses another sorting method the attribution parameter is stripped from the URL. 

How often does Nosto update the clone collections? 

Clone collections are updated every time you save, edit or delete a collection. There might be a small delay but in most cases the update is instantaneous. There is also an automatic update scheduled every 30mins to validate product attributes such as availability, pricing and overall ordering of items based on product performance. 

Do i need to make any other changes after the synchronization is working correctly? 

You need to add the canonical URL to Nosto generated collections, and potentially modify some templates to make sure clone collections do not appear in places where you don't want them to. 

Read more here: How to get started on Shopify or Shopify Plus

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