---
title: CollectionUpdateSubCollectionsSourceInput - GraphQL Admin
description: |-
  The input fields for updating a sub-collection source — a source whose
  membership comes from one or more referenced collections.
api_version: 2026-07
source_url:
  html: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/CollectionUpdateSubCollectionsSourceInput
  md: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/CollectionUpdateSubCollectionsSourceInput.md
api_name: admin
api_type: graphql
type: input-object
metadata:
  domain: admin
---

# Collection​Update​Sub​Collections​Source​Input

input\_object

The input fields for updating a sub-collection source — a source whose membership comes from one or more referenced collections.

## Fields

* collection​Ids

  [\[ID!\]](https://shopify.dev/docs/api/admin-graphql/latest/scalars/ID)

  The global IDs of the sub-collections whose products supply this source. When provided, it replaces the source's current referenced collections.

* description

  [String](https://shopify.dev/docs/api/admin-graphql/latest/scalars/String)

  An optional description of the source.

* id

  [ID!](https://shopify.dev/docs/api/admin-graphql/latest/scalars/ID)

  non-null

  The ID of the source to update.

* title

  [String](https://shopify.dev/docs/api/admin-graphql/latest/scalars/String)

  The title of the source.

***

## Input objects using this input

* [Collection​Update​Source​Target​Input.subCollections](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/CollectionUpdateSourceTargetInput#fields-subCollections)

  INPUT OBJECT

  The input fields for updating a collection source - provide the one field that represents the type of source to update.

***

## Map

### Input objects using this input

* [Collection​Update​Source​Target​Input.subCollections](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/CollectionUpdateSourceTargetInput#fields-subCollections)