--- title: FulfillmentOrderMergeUserErrorCode - GraphQL Admin description: Possible error codes that can be returned by `FulfillmentOrderMergeUserError`. api_version: 2025-10 api_name: admin type: enum api_type: graphql source_url: html: https://shopify.dev/docs/api/admin-graphql/latest/enums/fulfillmentordermergeusererrorcode md: https://shopify.dev/docs/api/admin-graphql/latest/enums/fulfillmentordermergeusererrorcode.md --- # Fulfillment​Order​Merge​User​Error​Code enum Possible error codes that can be returned by `FulfillmentOrderMergeUserError`. ## Valid values * FULFILLMENT\_​ORDER\_​NOT\_​FOUND The fulfillment order could not be found. * GREATER\_​THAN The fulfillment order line item quantity must be greater than 0. * INVALID\_​LINE\_​ITEM\_​QUANTITY The fulfillment order line item quantity is invalid. *** ## Fields * [Fulfillment​Order​Merge​User​Error.code](https://shopify.dev/docs/api/admin-graphql/latest/objects/FulfillmentOrderMergeUserError#field-FulfillmentOrderMergeUserError.fields.code) OBJECT An error that occurs during the execution of `FulfillmentOrderMerge`. *** ## Map ### Fields with this enum * <-|[Fulfillment​Order​Merge​User​Error.code](https://shopify.dev/docs/api/admin-graphql/latest/objects/FulfillmentOrderMergeUserError#field-FulfillmentOrderMergeUserError.fields.code)