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

# Duplicate price

> HTTP 409, code duplicate_price

<Note>The problem document's `type` field points here: `https://docs.costgraph.ai/pricing/errors/duplicate_price`</Note>

```json theme={null}
{
  "type": "https://docs.costgraph.ai/pricing/errors/duplicate_price",
  "title": "Duplicate price",
  "status": 409,
  "code": "duplicate_price"
}
```

## When you see it

Reserved. No operation returns this code today: publishing a marketplace price is a natural-key upsert, so re-posting a key that already exists updates it (keeping its id) rather than conflicting.

## What to do

If a future operation does return it, the key already exists and the response names it; update the existing row instead of creating another.