Admin API/Common objects/Mutations

Saves delivery fees. `mode` free | flat | places. `rates` and `costs` replace every row of `level`; `products` (when sent) replaces every product's own delivery price.

Returns DeliveryFeesUpdatePayload!

mutation DeliveryFeesUpdate($input: JSON!) {
  deliveryFeesUpdate(input: $input) {
    deliveryFees
    userErrors {
      code
      message
      field
    }
  }
}

# Variables
{
  "input": ""
}