# Returns a add on from the system by its ID.

This method will look up a add on by the specified ID and return it back.

Endpoint: GET /addOns/{tenantId}/{id}
Version: v1-2025-04-18
Security: knox-authorizer

## Path parameters:

  - `tenantId` (string, required)
    The id of the tenant being accessed.

  - `id` (string, required)
    The ID of the add on to return.

## Query parameters:

  - `fields` (string)
    The fields that you want to retrieve; if omitted, the entire object is returned.

  - `consistentRead` (string)
    Indicates the API should force a consistent read on the data source.

## Response 200 fields (application/json):

  - `allow_multiple` (boolean)
    If true, a member can purchase more than one of this add on

  - `custom_field_values` (array)

  - `custom_field_values.boolean_value` (boolean)
    The boolean value

  - `custom_field_values.custom_field_id` (string)
    The unique identifier of the custom field

  - `custom_field_values.file_url_value` (string)
    The pointer to a file value

  - `custom_field_values.list_value` (array)
    The list value

  - `custom_field_values.numeric_value` (number)
    The numeric value

  - `custom_field_values.string_value` (string)
    The string value of the custom field

  - `custom_field_values.table_value` (array)
    A list of objects (a table)

  - `display_order` (number)
    The display order of the add on

  - `eligibility_criteria` (object, required)
    The criteria to use

  - `eligibility_criteria.advanced_rule_error_message` (string)
    The error message to show when the advanced rule fails

  - `eligibility_criteria.advanced_rules` (object)

  - `eligibility_criteria.age_restrictions` (object)

  - `eligibility_criteria.age_restrictions.maximum_age` (number)
    The maximum age of the contact

  - `eligibility_criteria.age_restrictions.minimum_age` (number)
    The minimum age of the contact

  - `eligibility_criteria.award_options` (object)

  - `eligibility_criteria.award_options.award_ids` (array)

  - `eligibility_criteria.award_options.award_type_ids` (array)

  - `eligibility_criteria.award_options.logic_operator` (string)
    Enum: "and", "not"

  - `eligibility_criteria.award_recipients` (boolean)
    If set, only people who have received awards

  - `eligibility_criteria.by_location` (boolean)
    If true, then filter by location

  - `eligibility_criteria.certificants` (boolean)
    If set, only people with specific certifications

  - `eligibility_criteria.certification_options` (object)

  - `eligibility_criteria.certification_options.program_ids` (array)

  - `eligibility_criteria.committee_member_options` (object)

  - `eligibility_criteria.committee_member_options.committee_ids` (array)

  - `eligibility_criteria.committee_member_options.committee_position_ids` (array)

  - `eligibility_criteria.committee_member_options.committee_type_ids` (array)

  - `eligibility_criteria.committee_members` (boolean)
    If set, active members who belong to a committee can purchase

  - `eligibility_criteria.customer_type` (string)
    Enum: "contact", "organization"

  - `eligibility_criteria.donor_options` (object)

  - `eligibility_criteria.donor_options.donor_club_ids` (array)

  - `eligibility_criteria.donors` (boolean)
    If true, only donors

  - `eligibility_criteria.enable_advanced_rules` (boolean)
    Enable advanced JSON rules

  - `eligibility_criteria.enable_age_restrictions` (boolean)
    Age registrations

  - `eligibility_criteria.enable_expression` (boolean)
    Whether or not to enable an expression for evaluation

  - `eligibility_criteria.enable_organization_restrictions` (boolean)
    If set, you can restrict organizations

  - `eligibility_criteria.enable_status_restriction` (boolean)
    If set, you can restrict by status

  - `eligibility_criteria.event_registration_options` (object)

  - `eligibility_criteria.event_registration_options.event_ids` (array)

  - `eligibility_criteria.event_registration_options.registration_category_ids` (array)

  - `eligibility_criteria.event_registrations` (boolean)
    If set, only people who have registered for events

  - `eligibility_criteria.expression` (string)
    The expression

  - `eligibility_criteria.expression_error_message` (string)
    The error message to show when the expression fails

  - `eligibility_criteria.location` (object)

  - `eligibility_criteria.location.countries` (array)
    Countries

  - `eligibility_criteria.location.negate_logic` (boolean)
    If true, the logic in this section is negated; so NOT from these places

  - `eligibility_criteria.member_options` (object)

  - `eligibility_criteria.member_options.chapter_member_options` (object)

  - `eligibility_criteria.member_options.chapter_member_options.chapter_ids` (array)

  - `eligibility_criteria.member_options.chapter_member_options.chapter_type_ids` (array)

  - `eligibility_criteria.member_options.chapter_members` (boolean)
    If set, active members who belong to a chapter can purchase

  - `eligibility_criteria.member_options.member_package_ids` (array)
    The member package

  - `eligibility_criteria.member_options.member_status_reason_ids` (array)

  - `eligibility_criteria.member_options.member_statuses` (array)
    Enum: "active", "inactive", "suspended"

  - `eligibility_criteria.member_options.member_type_ids` (array)
    The member types

  - `eligibility_criteria.member_options.section_member_options` (object)

  - `eligibility_criteria.member_options.section_member_options.section_ids` (array)

  - `eligibility_criteria.member_options.section_member_options.section_type_ids` (array)

  - `eligibility_criteria.member_options.section_members` (boolean)
    If set, active members who belong to a section can purchase

  - `eligibility_criteria.members` (boolean)
    If set, active members can purchase this

  - `eligibility_criteria.non_members` (boolean)
    If set, only nonmembers can purchase

  - `eligibility_criteria.organization_restrictions` (object)

  - `eligibility_criteria.organization_restrictions.contact_role_ids` (array)

  - `eligibility_criteria.organization_restrictions.organization_type_ids` (array)

  - `eligibility_criteria.status_restrictions` (array)
    The statuses

  - `eligibility_criteria.use_organization_for_eligibility` (boolean)
    If checked, a person's organization is used to check for eligibility, rather than the person themselves

  - `enable_dues` (boolean)
    If set, this add on should cost money

  - `enable_eligibility` (boolean)
    If set, then only certain individual are eligible for this add on

  - `hide_from_portal` (boolean)
    Hide this add on from the portal

  - `id` (string, required)
    The unique, string identifier of this add on

  - `is_active` (boolean)
    Whether or not this add on is active

  - `name` (string, required)
    The name of the add on

  - `portal_description` (string)
    Description of the add on to be displayed in the portal

  - `sys_bulk_load_at` (string)
    If this record was loaded via bulk, the timestamp when the record was processed

  - `sys_bulk_load_id` (string)
    If this record was loaded via bulk, the ID of the bulk load process

  - `sys_bulk_load_pk` (string)
    If this record was loaded via bulk, the tenant and key of the bulk load process used as a partition key

  - `sys_bulk_load_record_no` (number)
    If this record was loaded via bulk, the record number in the source file

  - `sys_bulk_load_source_file` (string)
    If this record was loaded via bulk, the source file

  - `sys_calculated_field_error` (string)
    The error associated with the calculated field

  - `sys_calculated_field_errors` (array)

  - `sys_calculated_field_errors.error` (string)

  - `sys_calculated_field_errors.field` (string)

  - `sys_configuration_snapshot_id` (string)
    If a snapshot was restored/applies to this record, the ID of the snapshot

  - `sys_created_at` (string, required)
    The date/time that this record was created, expressed in ISO-8601 date format

  - `sys_created_by_id` (string, required)
    The ID of the user that created this record

  - `sys_deleted_by_id` (string)
    The ID of the user that deleted (or last tried to delete) this object

  - `sys_directive` (string)
    Means for passing directive information into an object processing logic

  - `sys_external_id` (string)
    The ID that a record has from an external system or data import

  - `sys_has_files_in_s3` (boolean)
    If true, this record has files in S3. If false, it doesnt, so no need to hit S3 upon deletion

  - `sys_last_bulk_data_operation_id` (string)
    If this record was last touched by a bulk data operation, the ID of that operation

  - `sys_last_bulk_data_operation_sys_version` (string)
    If this record was last touched by a bulk data operation, the sys_version at the time of that operation

  - `sys_last_modified_at` (string, required)
    The date/time that this record record was last modified, expressed in ISO-8601 date format

  - `sys_last_modified_by_id` (string, required)
    The ID of the user that last modified this record

  - `sys_last_security_context` (object)
    The security context of the last insert, modify, or delete performed on this item

  - `sys_locked` (boolean)
    If set, this record is locked and cannot be changed via the API

  - `sys_snapshot_base_version` (number)
    The version to use as a base when creating a configuration snapshot; if not set, 1 is used. Helpful when creating a sandbox

  - `sys_version` (number)
    A number representing the version of this record in the database

  - `type_id` (string)
    The type of add on


## Response 400 fields

## Response 401 fields

## Response 403 fields

## Response 404 fields

## Response 429 fields

## Response 500 fields