# FulfillmentConstraintRuleCreateUserErrorCode - admin-graphql - ENUM
Version: 2024-10

## Description
Possible error codes that can be returned by `FulfillmentConstraintRuleCreateUserError`.

### Access Scopes





## Enum values
* [CUSTOM_APP_FUNCTION_NOT_ELIGIBLE](/docs/api/admin-graphql/2024-10/enums/CUSTOM_APP_FUNCTION_NOT_ELIGIBLE)
* [FUNCTION_ALREADY_REGISTERED](/docs/api/admin-graphql/2024-10/enums/FUNCTION_ALREADY_REGISTERED)
* [FUNCTION_DOES_NOT_IMPLEMENT](/docs/api/admin-graphql/2024-10/enums/FUNCTION_DOES_NOT_IMPLEMENT)
* [FUNCTION_NOT_FOUND](/docs/api/admin-graphql/2024-10/enums/FUNCTION_NOT_FOUND)
* [FUNCTION_PENDING_DELETION](/docs/api/admin-graphql/2024-10/enums/FUNCTION_PENDING_DELETION)
* [INPUT_INVALID](/docs/api/admin-graphql/2024-10/enums/INPUT_INVALID)
* [MAXIMUM_FULFILLMENT_CONSTRAINT_RULES_REACHED](/docs/api/admin-graphql/2024-10/enums/MAXIMUM_FULFILLMENT_CONSTRAINT_RULES_REACHED)

## Fields with this enum
* [FulfillmentConstraintRuleCreateUserError.code](/docs/api/admin-graphql/2024-10/objects/FulfillmentConstraintRuleCreateUserError)


## Examples