> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zenflow.com.ar/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Stock Adjustment

> Add or remove stock (relative adjustment)

# Create Stock Adjustment

Create a stock adjustment by adding or removing a quantity.

<Note>Requires `write:stock` scope.</Note>

## Request

```bash theme={null}
POST /api/v1/stock/adjustment
```

### Body Parameters

<ParamField body="product_id" type="integer">
  Product ID (or use sku)
</ParamField>

<ParamField body="sku" type="string">
  Product SKU (alternative to product\_id)
</ParamField>

<ParamField body="location_id" type="string" required>
  Location ID
</ParamField>

<ParamField body="adjustment_quantity" type="number" required>
  Quantity to add (positive) or remove (negative)
</ParamField>

<ParamField body="reason" type="string">
  Reason for the adjustment
</ParamField>

## Examples

### Add Stock

```bash theme={null}
curl -X POST "https://api.zenflow.com.ar/api/v1/stock/adjustment" \
  -H "X-API-Key: zenflow_live_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "product_id": 100,
    "location_id": "LOC-A1",
    "adjustment_quantity": 25,
    "reason": "Received from supplier"
  }'
```

#### Response

```json theme={null}
{
  "success": true,
  "data": {
    "type": "addition",
    "quantity_adjusted": 25,
    "stock": {
      "product_id": 100,
      "location_id": "LOC-A1",
      "previous_quantity": 50,
      "new_quantity": 75
    }
  }
}
```

### Remove Stock

```bash theme={null}
curl -X POST "https://api.zenflow.com.ar/api/v1/stock/adjustment" \
  -H "X-API-Key: zenflow_live_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "sku": "SKU-001",
    "location_id": "LOC-A1",
    "adjustment_quantity": -10,
    "reason": "Damaged items removed"
  }'
```

#### Response

```json theme={null}
{
  "success": true,
  "data": {
    "type": "removal",
    "quantity_adjusted": -10,
    "stock": {
      "product_id": 100,
      "location_id": "LOC-A1",
      "previous_quantity": 75,
      "new_quantity": 65
    }
  }
}
```

## Error Responses

### 400 Zero Quantity

```json theme={null}
{
  "success": false,
  "error": {
    "code": "validation_error",
    "message": "adjustment_quantity cannot be zero"
  }
}
```

### 400 Insufficient Stock

```json theme={null}
{
  "success": false,
  "error": {
    "code": "adjustment_error",
    "message": "Insufficient stock. Available: 5, Requested: 10"
  }
}
```

### 404 Product Not Found

```json theme={null}
{
  "success": false,
  "error": {
    "code": "not_found",
    "message": "Product not found"
  }
}
```