# Line Items APIs to manage line items mapped to an instance. ## Get a list of line items - [GET /v1.0/instances/{instanceId}/line-items](https://fnoapi-dynamicmonetization.redocly.app/apis/openapispec/line-items/getactivationsforinstance.md): Returns a list of line items mapped to instances owned by a producer's customer accounts. ## Map a line item to an instance - [PUT /v1.0/instances/{instanceId}/line-items](https://fnoapi-dynamicmonetization.redocly.app/apis/openapispec/line-items/addactivation.md): Maps a line item to an instance. The first time this API is called, the payload details will be stored, and reported in a GET line-item request. If the line item is already mapped, then the details stored will be entirely replaced. This method is intended for use if you do not use FlexNet Operations as your back office, so that you can configure your upstream system (e.g. a CRM or back office) to create line items in Dynamic Monetization for your end customers. (If you use FlexNet Operations as your back office, but use this method directly to provision line items that do not exist in FlexNet Operations, then those line items will not be reflected in FlexNet Operations.) ## Get a specific line item by ID - [GET /v1.0/instances/{instanceId}/line-items/{lineItemId}](https://fnoapi-dynamicmonetization.redocly.app/apis/openapispec/line-items/getlineitembyid.md): Returns information about a specific line item. Pass the line item ID for which you require information as a path parameter. ## Delete a line item by its ID - [DELETE /v1.0/instances/{instanceId}/line-items/{lineItemId}](https://fnoapi-dynamicmonetization.redocly.app/apis/openapispec/line-items/deletelineitem.md): Deletes a line item given its ID. This method is intended for use if you do not use FlexNet Operations as your back office, so that you can manage line items in Dynamic Monetization for your end customers. (If you use FlexNet Operations as your back office, but use this method directly to remove line items that exist in FlexNet Operations, then those line items' representation in FlexNet Operations will not be affected.)