Shopify productVariantsBulkUpdate not working - graphql

Question

I'm trying to run Shopify's bulk product variant update API and am following their documentation here: https://shopify.dev/api/admin-graphql/2022-07/mutations/productVariantsBulkUpdate
However, it doesn't like my metafields specifically. If I exclude the metafields array, it'll work fine.
Here is my GraphQL statement:
mutation productVariantsBulkUpdate($productId: ID!, $variants: [ProductVariantsBulkInput!]!) {
productVariantsBulkUpdate(productId: $productId, variants: $variants) {
product {
id
}
productVariants {
id,
sku
price
}
userErrors {
field
message
}
}
}
Here are my variables:
{
"productId": "gid://shopify/Product/7745363116271",
"variants": [
{
"id": "gid://shopify/ProductVariant/43052086755567",
"price": "275",
"metafields": [
{
"id": "gid://shopify/Metafield/824934639",
"value": "266.75"
},
{
"id": "gid://shopify/Metafield/825000175",
"value": "265.29"
},
{
"id": "gid://shopify/Metafield/824967407",
"value": "263.92"
},
{
"id": "gid://shopify/Metafield/825032943",
"value": "262.4"
},
{
"id": "gid://shopify/Metafield/825065711",
"value": "261.14"
}
]
},
{
"id": "gid://shopify/ProductVariant/43052086788335",
"price": "15",
"metafields": [
{
"id": "gid://shopify/Metafield/824934639",
"value": "14.55"
},
{
"id": "gid://shopify/Metafield/825000175",
"value": "14.47"
},
{
"id": "gid://shopify/Metafield/824967407",
"value": "14.4"
},
{
"id": "gid://shopify/Metafield/825032943",
"value": "14.31"
},
{
"id": "gid://shopify/Metafield/825065711",
"value": "14.24"
}
]
}
]
}
Then, here is the response:
{
"data": {
"productVariantsBulkUpdate": {
"product": null,
"productVariants": null,
"userErrors": [
{
"field": [
"variants",
"0",
"metafields",
"9",
"type"
],
"message": "Type can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"9",
"namespace"
],
"message": "Namespace can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"9",
"namespace"
],
"message": "Namespace is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"9",
"key"
],
"message": "Key can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"9",
"key"
],
"message": "Key is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"10",
"type"
],
"message": "Type can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"10",
"namespace"
],
"message": "Namespace can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"10",
"namespace"
],
"message": "Namespace is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"10",
"key"
],
"message": "Key can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"10",
"key"
],
"message": "Key is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"11",
"type"
],
"message": "Type can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"11",
"namespace"
],
"message": "Namespace can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"11",
"namespace"
],
"message": "Namespace is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"11",
"key"
],
"message": "Key can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"11",
"key"
],
"message": "Key is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"12",
"type"
],
"message": "Type can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"12",
"namespace"
],
"message": "Namespace can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"12",
"namespace"
],
"message": "Namespace is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"12",
"key"
],
"message": "Key can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"12",
"key"
],
"message": "Key is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"13",
"type"
],
"message": "Type can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"13",
"namespace"
],
"message": "Namespace can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"13",
"namespace"
],
"message": "Namespace is too short (minimum is 3 characters)"
},
{
"field": [
"variants",
"0",
"metafields",
"13",
"key"
],
"message": "Key can't be blank"
},
{
"field": [
"variants",
"0",
"metafields",
"13",
"key"
],
"message": "Key is too short (minimum is 3 characters)"
}
]
}
},
"extensions": {
"cost": {
"requestedQueryCost": 22,
"actualQueryCost": 10,
"throttleStatus": {
"maximumAvailable": 1000.0,
"currentlyAvailable": 990,
"restoreRate": 50.0
}
}
}
}
There are fields I already have created that are not null, so I'm at a loss. Their community forum isn't much help.