# Category

object type

A category — ONE recursive construct for the whole navigation spectrum (3 flat categories or a 6-level hierarchy; no fixed Department/Subcategory types). inactive = hidden from navigation, still reportable.

## Fields

| Field | Type | Notes |
| --- | --- | --- |
| `id` | [ID](/types/#scalars) `ID!` | The record’s id — a UUID the platform assigned when the record was created; every reference to this record uses it. |
| `sysId` | [String](/types/#scalars) `String!` | The group-scoped human-facing system id (CT-…). |
| `type` | [String](/types/#scalars) `String!` | The kind of record — always `Category` here. |
| `caption` | [String](/types/#scalars) `String!` | The record’s display name — what people see it called. |
| `status` | [String](/types/#scalars) `String!` | The FSM state: active \| inactive \| doomed. |
| `parentId` | [ID](/types/#scalars) `ID!` | The parent org group; for a Category parentId === rootId. |
| `rootId` | [ID](/types/#scalars) `ID!` | The org-group family root. |
| `createdAt` | [String](/types/#scalars) `String!` | When the record was created, as a UTC timestamp. |
| `updatedAt` | [String](/types/#scalars) `String!` | When the record last changed, as a UTC timestamp. |
| `revisionNum` | [Int](/types/#scalars) `Int!` | How many times this record has been edited; the first save is 0. |
| `revision` | [ID](/types/#scalars) `ID!` | The OCC revision token — supply it on every mutation of this record; rotates on every write. |
| `refCaptions` | [RefCaption](/types/RefCaption/) `[RefCaption!]!` | The server-composed captions of this record's declared references (the referenced-caption rule) — one row per referenced id; see RefCaption. |
| `treeParent` | [ID](/types/#scalars) | The chain always terminates at a root (cycles kit-rejected at write). |
| `merchandiseDivisionId` | [ID](/types/#scalars) | No further notes. |
| `code` | [String](/types/#scalars) | Optional mutable merchant reference code; uniqueness NOT enforced (the code stance). |

## Used by

- [category](/reference/category/category/)
- [createCategory](/reference/category/createCategory/)
- [deactivateCategory](/reference/category/deactivateCategory/)
- [doomCategory](/reference/category/doomCategory/)
- [reactivateCategory](/reference/category/reactivateCategory/)
- [updateCategory](/reference/category/updateCategory/)