create :create do
      description ""

      argument :data_in_id, :uuid do
        allow_nil? false
      end

      argument :category_id, :uuid do
        allow_nil? false
      end

      change manage_relationship(:data_in_id, :data_in, type: :append_and_remove)
      change manage_relationship(:category_id, :category, type: :append_and_remove)
    end

    create :create do
      description ""

      argument :data_in_id, :uuid do
        allow_nil? false
      end

      argument :category_id, :uuid do
        allow_nil? false
      end

      change manage_relationship(:data_in_id, :data_in, type: :append_and_remove)
      change manage_relationship(:category_id, :category, type: :append_and_remove)
    end

p = MmsBiztalk.bulk_create!(input.resources_attributes, input.resource, :create, upsert?: true, upsert_fields: [:sku_code, :quantity], return_records?: true)
%Ash.BulkResult{
  status: :success,
  errors: [],
  records: [
    #MmsBiztalk.Product<
      category: #Ash.NotLoaded<:relationship>,
      data_in: #Ash.NotLoaded<:relationship>,
      __meta__: #Ecto.Schema.Metadata<:loaded, "products">,
      id: "1905788c-1f86-4cef-a92c-2480ede1a59f",
      sku_code: "MAGP0.6.2",
      brand: "lotus",
      description_en: "cool",
      description_full_it: nil,
      description_full_en: nil,
      description_full_es: nil,
      description_full_de: nil,
      gross_unit_weight: 1.0,
      gross_unit_weight_measurement: nil,
      price: 1.0,
      macrofamily_code: "A",
      family_code: "A",
      logistic_class: "A",
      created_at: nil,
      quantity: 14.0,
      status: :not_synced,
      inserted_at: ~U[2023-05-25 15:13:14.831601Z],
      updated_at: ~U[2023-05-25 15:13:14.831601Z],
      deleted_at: nil,
      data_in_id: nil,
      category_id: nil,
      aggregates: %{},
      calculations: %{},
      __order__: nil,
      ...
    >
  ],
  notifications: [],
  error_count: 0
}

p = MmsBiztalk.bulk_create!(input.resources_attributes, input.resource, :create, upsert?: true, upsert_fields: [:sku_code, :quantity], return_records?: true)
%Ash.BulkResult{
  status: :success,
  errors: [],
  records: [
    #MmsBiztalk.Product<
      category: #Ash.NotLoaded<:relationship>,
      data_in: #Ash.NotLoaded<:relationship>,
      __meta__: #Ecto.Schema.Metadata<:loaded, "products">,
      id: "1905788c-1f86-4cef-a92c-2480ede1a59f",
      sku_code: "MAGP0.6.2",
      brand: "lotus",
      description_en: "cool",
      description_full_it: nil,
      description_full_en: nil,
      description_full_es: nil,
      description_full_de: nil,
      gross_unit_weight: 1.0,
      gross_unit_weight_measurement: nil,
      price: 1.0,
      macrofamily_code: "A",
      family_code: "A",
      logistic_class: "A",
      created_at: nil,
      quantity: 14.0,
      status: :not_synced,
      inserted_at: ~U[2023-05-25 15:13:14.831601Z],
      updated_at: ~U[2023-05-25 15:13:14.831601Z],
      deleted_at: nil,
      data_in_id: nil,
      category_id: nil,
      aggregates: %{},
      calculations: %{},
      __order__: nil,
      ...
    >
  ],
  notifications: [],
  error_count: 0
}

pry(1)> input.resources_attributes
[
  %{
    category_id: "054bb31e-932d-4509-b96c-18af44abf5ad",
    data_in_id: "8b58c644-c9a4-4ff7-8314-ea8262a826fb",
    id: "73c7a25b-1bd3-45f4-bb5d-0dae1b293022",
    quantity: 14.0,
    sku_code: "MAGP0.6.2"
  }
]

pry(1)> input.resources_attributes
[
  %{
    category_id: "054bb31e-932d-4509-b96c-18af44abf5ad",
    data_in_id: "8b58c644-c9a4-4ff7-8314-ea8262a826fb",
    id: "73c7a25b-1bd3-45f4-bb5d-0dae1b293022",
    quantity: 14.0,
    sku_code: "MAGP0.6.2"
  }
]