1.Created a guest cart (this will give me the cartID)-> POST: http://.../Magento2/index.php/rest/V1/guest-carts

  1. Get cart details-> GET: http://.../Magento2/index.php/rest/V1/guest-carts/{cartID}.

  2. add items to cart-> POST: http://.../Magento2/index.php/rest/V1/guest-carts/{cartID}/items

Added in body part. { "cartItem": { "item_id": 0, "sku": "string", "qty": 0 } }

Getting Error :- { "message": "No such entity with %fieldName = %fieldValue", "parameters": { "fieldName": "cartId", "fieldValue": null },

Thanks in advance.

For ref. Testing in postman client & using http://devdocs.magento.com/swagger/index.html#/ link.

2 Answers 2


Add item to guest cart

[POST] http://.../Magento2/index.php/rest/V1/guest-carts/ - gives cart Id.

[POST] http://.../Magento2/index.php/rest/V1/guest-carts/a03da1c69a5b1b57a405d05a31e16ce5/items – Adds an item to cart.

Body - { "cartItem": { "quote_id": "a03da1c69a5b1b57a405d05a31e16ce5", "sku": "Mobile1", "qty": 10 } }

  • Can you verify that this works on magento 2.1?
    – Mackelito
    Aug 26, 2016 at 14:06
  • @Mackelito The answer works on Magento 2.2
    – Key Shang
    Mar 23, 2018 at 7:39

Try using quote_id instead of cartId

Posting this


to "V1/guest-carts/75fc406b9aadbad6fe1b9a2df9881acd/items"

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