Purpose of article assignment in "Add to Cart" API for "Buy Now" scenario

Fynd Platform Extensions
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#1

https://jiomartplaypitcompany.jiox1.de/api/service/application/cart/v1.0/detail?buy_now=true

  1. {items: [{item_id: 7504087, item_size: “OS”, quantity: 1,…}]}

  2. items: [{item_id: 7504087, item_size: “OS”, quantity: 1,…}]

1. 0: {item_id: 7504087, item_size: "OS", quantity: 1,…}

  1. article_assignment: {level: "multi-companies", strategy: "optimal"}

    1. level: "multi-companies"
    2. strategy: "optimal"

  2. item_id: 7504087
  3. item_size: "OS"
  4. quantity: 1
  5. seller_id: 4
  6. store_id: 4