# Quote Requests Change Types

Change types that represent data modifications made to the [Quote Requests](/api/projects/quote-requests.md) entity.

## Change types

#### Change Customer

Change triggered by the [Change Customer](/search.md?urn=ctp:api:type:QuoteRequestChangeCustomerAction) update action.

[type definition](/search.md?urn=ctp:history:type:ChangeCustomerChange).

#### Change Quote Request State

[type definition](/search.md?urn=ctp:history:type:ChangeQuoteRequestStateChange).

#### Set Custom Field

Change triggered by the [Set Custom Field](/search.md?urn=ctp:api:type:QuoteRequestSetCustomFieldAction) update action.

[type definition](/search.md?urn=ctp:history:type:SetCustomFieldChange).

#### Set Custom Type

Change triggered by the [Set Custom Type](/search.md?urn=ctp:api:type:QuoteRequestSetCustomTypeAction) update action.

[type definition](/search.md?urn=ctp:history:type:SetCustomTypeChange).

#### Transition State

Change triggered by the [Transition State](/search.md?urn=ctp:api:type:QuoteRequestTransitionStateAction) update action.

[type definition](/search.md?urn=ctp:history:type:TransitionStateChange).

## Related pages

- [Area overview page with navigation](/api.md)
- [Previous page: Product Types](/api/history/change-types/product-types.md)
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- [Search documentation and API specs](/search.md)