Invalid path provided in patch at index of 0.

[liuzhenggang]

I am using the patchListingsItem interface (/listings/2021-08-01/items/{sellerId}/{sku}) to update the price attribute of the listing, and the payload is as follows:

{
    "productType": "MECHANICAL_BELT",
    "patches": [
        {
            "op": "replace",
            "path":"/attributes/purchasable_offer",
            "value":[
                {
                "our_price": [
                    {
                        "schedule": [
                            {
                                "value_with_tax": 14.47
                            }
                        ]
                    }
                ]
                }
            ]
        }
    ]
}

The modification was successful at this point.
However, when I modify the message as follows, the interface will return an error message. “Invalid path provided in patch at index of 0.”

{
    "productType": "MECHANICAL_BELT",
    "patches": [
        {
            "op": "replace",
            "path":"/attributes/purchasable_offer/0",
            "value":{
                "marketplace_id": "ATVPDKIKX0DER",
                "currency": "USD",
                "our_price": [
                    {
                        "schedule": [
                            {
                                "value_with_tax": 14.47
                            }
                        ]
                    }
                ]
			}
        }
    ]
}

Is the interface not following the JSON Patch specification?

[jawheral]

Hi @liuzhenggang,

Only patching of the full top-level attribute is supported currently. You need to replace the full purchasable_offer.
If you, however, have multiple offers with a different audience, currency or marketplace - see here - you can update a certain offer only by providing the audience, currency and marketplace_id that you need to update.

Best,
Jawher
Selling Partner Developer Services