# Expand

NOTE: This parameter description applies only to the CategoryGetHierDetails action.

Allows you to expand one or more categories in the category hierarchy, so that the child categories that they contain are displayed. Use one of the following options:

- All. All categories are expanded to display their child categories.

- `Category_IDs`. Type one or more category IDs to display their child categories. Separate multiple category IDs with commas. There must be no space before or after a comma.

Actions: | CategoryGetHierDetails
Type: | String
Default: |
Example: | `Expand=123098234987345876,123078234985645972`
See Also: |

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