returnCalculate - INTERNAL_SERVER_ERROR

[Jake_Goodman]

Hi,

I am trying to work with the returnCalculate mutation, and am getting the INTERNAL_SERVER_ERROR when testing (my dev store is jake-apr-29).

Here is the payload I used:

{
  "input": {
    "orderId": "gid://shopify/Order/6374622560494",
    "exchangeLineItems": [
      {
        "variantId": "gid://shopify/ProductVariant/45210836959470",
        "quantity": 1
      }
    ],
    "returnLineItems": [
      {
        "fulfillmentLineItemId": "gid://shopify/FulfillmentLineItem/13534238015726",
        "quantity": 1
      }
    ],
    "returnShippingFee": {
      "amount": {
        "amount": -14.37,
        "currencyCode": "CAD"
      }
    }
  }
}

Here is the query I used:

query ($input: CalculateReturnInput!) {
  returnCalculate(input: $input) {
    ...CalculatedReturnInfo
  }
}

And here is the response I got:

Internal error. Looks like something went wrong on our end.\nRequest ID: eb0deed7-1569-4f7a-964e-fd3101428c3c-1743793421 (include this in support requests).

Please help me get this working!

[Jake_Goodman]

I just fixed it by making the shipping fee amount positive instead of negative

[KyleG-Shopify]

Hey @Jake_Goodman

The problem looks to be the return shipping fee you’re providing in your payload. You’re currently using -14.37 which is a negative value, but the API requires this to be a positive number (greater than or equal to 0).

[Jake_Goodman]

Awesome, thanks @KyleG-Shopify! It would be helpful to include this in the documentation or error message for the next dev to stumble into this error!

[KyleG-Shopify]

For sure! Just so you know, if you come across anything else, all of our docs have a feedback option. All feedback shared here is reviewed by our docs team.