# Set a side definition

`SetSideDefinition`

`PUT /api/transactionconfiguration/sides/{side}`

- [OpenAPI fragment](https://www.lusid.com/docs/api/lusid/endpoints/transaction-configuration/SetSideDefinition.json)
- [Rendered page](https://www.lusid.com/docs/api/lusid/endpoints/transaction-configuration/SetSideDefinition)

Set a new side definition for use in a transaction type. For more information, see https://support.lusid.com/knowledgebase/article/KA-01875.

## Referenced schemas

- [SideDefinitionRequest](https://www.lusid.com/docs/api/lusid/schemas/SideDefinitionRequest.txt)
- [SideDefinition](https://www.lusid.com/docs/api/lusid/schemas/SideDefinition.txt)

[< Transaction Configuration](https://www.lusid.com/docs/api/lusid/endpoints/transaction-configuration/llms.txt)