> Documentation index: [Saleor](/llms.txt) · [This section](/api-reference/discounts/llms.txt)
> Source: https://docs.saleor.io/api-reference/discounts/objects/promotion-update

# PromotionUpdate Object

Updates an existing promotion.

Requires the MANAGE\_DISCOUNTS permission.

Triggers the following webhook events:

-   PROMOTION\_UPDATED (async): A promotion was updated.
-   PROMOTION\_STARTED (async): Optionally called if promotion was started.
-   PROMOTION\_ENDED (async): Optionally called if promotion was ended.

```graphql
type PromotionUpdate {
  errors: [PromotionUpdateError!]!
  promotion: Promotion
}
```

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### Fields

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#### [`errors`](#errors) ● [`[PromotionUpdateError!]!`](/api-reference/miscellaneous/objects/promotion-update-error.md)

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#### [`promotion`](#promotion) ● [`Promotion`](/api-reference/discounts/objects/promotion.md)

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### Returned By

[`promotionUpdate`](/api-reference/discounts/mutations/promotion-update.md) mutation