# abcClasses

query · in the family [Reading your records](/reference/reading-your-records/)

## What it does

ABC inventory classification — ranks what you sell into A/B/C classes by value and how fast it moves. “A” items are your most valuable, fastest movers; “C” items the slowest.

THE ABC CLASSIFIER: value × velocity scores with registry cut lines (A < 80% cumulative share, B < 95%, else C); scope REQUIRED bounded (EXACTLY one of logicalFacilityId ⊕ organizationId); abcClassOverride pins a book's class; a zero-velocity scope orders by the value axis alone (scoreBasis: value — -i, disclosed). ARMS the.2 count-scope abcClass filter. DERIVED at read. Requires authentication.

## What happens

Reads your sales and stock figures and answers the class list. Changes nothing.

## Careful

None — a read. Classes also feed count scopes, so a class you see here can drive which items a stock count visits.

## Who may call it

Capability area: **Reading your records** — Looking up and listing the records of your organization.

- Owner
- System Administrator
- Manager
- Associate Manager
- Warehouse Associate
- Sales Associate
- An API key whose scope allows `api:abcClasses`

## Arguments

| Name | Type | Required | Notes |
| --- | --- | --- | --- |
| `logicalFacilityId` | [ID](/types/#scalars) | no | No further notes. |
| `organizationId` | [ID](/types/#scalars) | no | No further notes. |

## Returns

[AbcClassEntry](/types/AbcClassEntry/) `[AbcClassEntry!]!` — One classified book: value × velocity with registry cut lines (A < 80% cumulative share, B < 95%, else C; zero-score books are C); abcClassOverride pins the class (overridden: true).

## Example request

```graphql
query ExampleAbcClasses($logicalFacilityId: ID) {
  abcClasses(logicalFacilityId: $logicalFacilityId) {
    inventoryItemId
    variantId
    logicalFacilityId
    abcClass
    scoreBasis
    sharePercent
    overridden
  }
}
```

Variables:

```json
{
  "logicalFacilityId": "01900000-0000-7000-8000-8026f71c0000"
}
```

## Example response

```json
{
  "data": {
    "abcClasses": [
      {
        "inventoryItemId": "01900000-0000-7000-8000-9307d9650000",
        "variantId": "01900000-0000-7000-8000-8415e73b0000",
        "logicalFacilityId": "01900000-0000-7000-8000-8026f71c0000",
        "abcClass": "A",
        "scoreBasis": "<score basis>",
        "sharePercent": 1.5,
        "overridden": true
      }
    ]
  },
  "extensions": {
    "at": {
      "callId": "01EXAMPLE-CALL-ID",
      "version": {
        "requested": null,
        "serviced": {
          "name": "genesis",
          "number": 0
        }
      }
    }
  }
}
```

## Errors this call can answer

- `VALIDATION/INVALID` — Something in the request is not valid. ([VALIDATION](/errors/VALIDATION/))
- `AUTHN/REQUIRED` — Sign in to do this. ([AUTHN](/errors/AUTHN/))
- `AUTHZ/FORBIDDEN` — Your role does not allow this action. ([AUTHZ](/errors/AUTHZ/))
- `RATE_LIMIT/THROTTLED` — Too many requests in a short time. ([RATE_LIMIT](/errors/RATE_LIMIT/))
- `NOT_FOUND/*` — That record could not be found. ([NOT_FOUND](/errors/NOT_FOUND/))