<!-- Extension API v0 — pre-1.0. Interfaces may change without notice until P2 seals the custom-code format. First-party extensions track HEAD. -->

# `channel.listing.set`

Create/update marketplace listings for products or variants on a channel: enable, price/list overrides, price lock, buffer, mapping fields (bulk ≤500).

- **scope**: `catalog:write`
- **storefront-visible** (bumps the catalog generation): no
- **destructive**: no

## Payload

| field | type | required | notes |
|---|---|---|---|
| `channel` | string (/^[a-z0-9_]{2,24}$/) | yes |  |
| `rows` | array<object> (≤500) | yes |  |

### JSON Schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "channel": {
      "type": "string",
      "pattern": "^[a-z0-9_]{2,24}$"
    },
    "rows": {
      "minItems": 1,
      "maxItems": 500,
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "productId": {
            "type": "string",
            "pattern": "^prd_[a-zA-Z0-9]{1,32}$"
          },
          "variantId": {
            "type": "string",
            "pattern": "^var_[a-zA-Z0-9]{1,32}$"
          },
          "enabled": {
            "type": "boolean"
          },
          "priceKurus": {
            "anyOf": [
              {
                "type": "integer",
                "minimum": 0,
                "maximum": 10000000000000
              },
              {
                "type": "null"
              }
            ]
          },
          "listPriceKurus": {
            "anyOf": [
              {
                "type": "integer",
                "minimum": 0,
                "maximum": 10000000000000
              },
              {
                "type": "null"
              }
            ]
          },
          "priceLocked": {
            "type": "boolean"
          },
          "buffer": {
            "anyOf": [
              {
                "type": "integer",
                "minimum": 0,
                "maximum": 10000
              },
              {
                "type": "null"
              }
            ]
          },
          "metaPatch": {
            "type": "object",
            "propertyNames": {
              "type": "string"
            },
            "additionalProperties": {}
          },
          "status": {
            "type": "string",
            "enum": [
              "draft",
              "pending",
              "approved",
              "rejected",
              "locked",
              "archived",
              "orphaned"
            ]
          },
          "externalProductId": {
            "anyOf": [
              {
                "type": "string",
                "maxLength": 64
              },
              {
                "type": "null"
              }
            ]
          },
          "externalSku": {
            "anyOf": [
              {
                "type": "string",
                "maxLength": 100
              },
              {
                "type": "null"
              }
            ]
          },
          "externalGroupId": {
            "anyOf": [
              {
                "type": "string",
                "maxLength": 64
              },
              {
                "type": "null"
              }
            ]
          },
          "lastPush": {
            "type": "object",
            "propertyNames": {
              "type": "string"
            },
            "additionalProperties": {}
          },
          "lastRemote": {
            "type": "object",
            "propertyNames": {
              "type": "string"
            },
            "additionalProperties": {}
          },
          "lastError": {
            "anyOf": [
              {
                "type": "object",
                "propertyNames": {
                  "type": "string"
                },
                "additionalProperties": {}
              },
              {
                "type": "null"
              }
            ]
          },
          "dirty": {
            "type": "boolean"
          }
        },
        "required": [
          "productId"
        ],
        "additionalProperties": false
      }
    }
  },
  "required": [
    "channel",
    "rows"
  ],
  "additionalProperties": false
}
```