productVariantsBulkUpdate upload image fror variations

Technical Q&A
1

This is the flow that I follow in order to create a product in my Shopify account:

  • I use GraphQL API;

  • The first thing that I do is to use the “ProductSet” Mutation in order to create the Product and send all the images referred to the product;

  • Then I use the “productVariantsBulkUpdate” to pass the images for the variations, but in order to do it I re-use the imageID created with the “ProductSet” Mutation;

  • When I do this it can happen that I receive the following error for some variations:

      {
        "code": "MUST_BE_FOR_THIS_PRODUCT",
        "field": [
          "variants",
          "5",
          "mediaId"
        ],
        "message": "Image must be for this product"
      }

Also I’ve noticed that this error happens when I try to import the same product with same options and images more than one time in a short time.

If I repeat again the mutation the error doesn’t appear.

Following the two mutations as examples:

ProductSet Mutation:

mutation CreateProductSynchronous($productSet: ProductSetInput!, $synchronous: Boolean!){                       
    productSet(input: $productSet, synchronous: $synchronous) {
        product {
            id
            title
            options {
                id
                name
                optionValues {
                    id
                    name
                }
            }
            media(first:250){
                edges{
                    node{
                        id
                        alt
                        preview{
                            image{
                                id
                                url
                            }
                        }
                    }
                }
            }
            variants(first: 100) {
                edges {
                    node {
                        id
                        title
                        price
                        sku
                    }
                }
            }
        }
        userErrors {
            field
            message
        }
    }
}

variables...

productVariantsBulkUpdate Mutation:

mutation productVariantsBulkUpdate($productId: ID!, $variants: [ProductVariantsBulkInput!]!) {
  productVariantsBulkUpdate(productId: $productId, variants: $variants) {
    product {
      id 
    }
    productVariants {
      id
      media(first:1) {
        edges {
          node {
            id
          }
        }
      }
    }
    userErrors {
      code
      field
      message
      }
    }
  }

"""variables"": {
""productId"": ""gid://shopify/Product/8837826937090"",
""variants"": [
{
""id"": ""gid://shopify/ProductVariant/45598512513282"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512513282""
},
""mediaId"": ""gid://shopify/MediaImage/34440417673474"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512546050"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512546050""
},
""mediaId"": ""gid://shopify/MediaImage/34440417771778"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512578818"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512578818""
},
""mediaId"": ""gid://shopify/MediaImage/34440417870082"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512611586"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512611586""
},
""mediaId"": ""gid://shopify/MediaImage/34440417706242"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512644354"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512644354""
},
""mediaId"": ""gid://shopify/MediaImage/34440417804546"",
""price"": 17.5,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512677122"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512677122""
},
""mediaId"": ""gid://shopify/MediaImage/34440417902850"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512709890"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512709890""
},
""mediaId"": ""gid://shopify/MediaImage/34440417739010"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512742658"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512742658""
},
""mediaId"": ""gid://shopify/MediaImage/34440417837314"",
""price"": 17.0,
""taxable"": true
},
{
""id"": ""gid://shopify/ProductVariant/45598512775426"",
""inventoryPolicy"": ""DENY"",
""inventoryItem"": {
""requiresShipping"": true,
""tracked"": true,
""sku"": ""ZAK-45598512775426""
},
""mediaId"": ""gid://shopify/MediaImage/34440417935618"",
""price"": 17.0,
""taxable"": true
}
]
}"

Response:

"""productVariantsBulkUpdate"": {
  ""product"": {
    ""id"": ""gid://shopify/Product/8837826937090""
  },
  ""productVariants"": [
    {
      ""id"": ""gid://shopify/ProductVariant/45598512513282"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512546050"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512578818"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512611586"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512644354"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512677122"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512709890"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512742658"",
      ""media"": {
        ""edges"": []
      }
    },
    {
      ""id"": ""gid://shopify/ProductVariant/45598512775426"",
      ""media"": {
        ""edges"": []
      }
    }
  ],
  <strong>""userErrors"": [
  {
    ""code"": ""MUST_BE_FOR_THIS_PRODUCT"",
    ""field"": [
      ""variants"",
      ""0"",
      ""mediaId""
    ],
    ""message"": ""Image must be for this product""
  },
  {
    ""code"": ""MUST_BE_FOR_THIS_PRODUCT"",
    ""field"": [
      ""variants"",
      ""5"",
      ""mediaId""
    ],
    ""message"": ""Image must be for this product""
  }
 ]</strong>
}"

As you can see I can receive the error: MUST_BE_FOR_THIS_PRODUCT

How can I resolve this error?