Create Offer: Not Update Price, Quantity, and Merchant Shipping Group

[Chintan-2108]

We are encountering an issue when attempting to create an offer on existing ASIN with the SKU,price, quantity, and merchant shipping group for a specific product listing. Despite providing the required attributes in the payload body for the PUT request, the changes are not reflected accurately. Here are the details:

Price Update:
Expected: Price should be updated to £4.82.
Observed: The price is being set to 0 instead of the desired £4.82.

Quantity Update:
Expected: Quantity should be set to 0.
Observed: The quantity is appearing as blank instead of 0.

Merchant Shipping Group Update:
Expected: Merchant shipping group should be updated to "Nationwide Prime".
Observed: The merchant shipping group remains unchanged from its default value.

The issue persists despite ensuring that all required attributes are present in the payload body. We are utilizing Postman for the PUT request to the specified endpoint:

PUT https://sellingpartnerapi-eu.amazon.com/listings/2021-08-01/items/AMxxxxxM9/HN-B963-MMKXH9D?marketplaceIds=A1xxxxxxxxxP&issueLocale=en_GB

{ "productType": "AREA_DEODORIZER", "requirements": "LISTING_OFFER_ONLY", "attributes": { "merchant_suggested_asin": [ { "value": "B07X9MJ519", "marketplace_id": "A1xxxxxxxxxP" } ], "condition_type": [ { "value": "new_new", "marketplace_id": "A1xxxxxxxxxP" } ] }, "purchasable_offer": [ { "currency": "GBP", "our_price": [ { "schedule": [ { "value_with_tax": 4.82 } ] } ], "marketplace_id": "A1xxxxxxxxxP" } ], "fulfillment_availability": [ { "fulfillment_channel_code": "DEFAULT", "quantity": 0, "marketplace_id": "A1xxxxxxxxxP" } ], "merchant_shipping_group": [ { "value": "ba93e55d-cdf7-4549-819d-f7465a135c83", "marketplace_id": "A1xxxxxxxxxP" } ] }