# usage-rate-card-assignments Usage rate cards contain the usage pricing structure - they can be assigned at Customer, Site or Usage Product Inventory level (UPI) ## Get a list of usage rate card assignments - [GET /usage-rate-card-assignments](https://docs.elevatebilling.com/openapi/prod/gen/billing-rest-assignment/usage-rate-card-assignments/getusageratecardassignments.md) ## Create a new usage rate card assignment - [POST /usage-rate-card-assignments](https://docs.elevatebilling.com/openapi/prod/gen/billing-rest-assignment/usage-rate-card-assignments/createusageratecardassignment.md) ## Check if usage rate card assignment exists - [HEAD /usage-rate-card-assignments](https://docs.elevatebilling.com/openapi/prod/gen/billing-rest-assignment/usage-rate-card-assignments/checkusageratecardassignment.md) ## Update a usage rate card assignment - [PATCH /usage-rate-card-assignments/{assignmentLevel}/{usage_rate_card_assignment_id}](https://docs.elevatebilling.com/openapi/prod/gen/billing-rest-assignment/usage-rate-card-assignments/updateusageratecardassignment.md) ## Delete a usage rate card assignment - [DELETE /usage-rate-card-assignments/{assignmentLevel}/{usage_rate_card_assignment_id}](https://docs.elevatebilling.com/openapi/prod/gen/billing-rest-assignment/usage-rate-card-assignments/deleteusageratecardassignment.md): Can only be done if not included in a finalised bill run