Create billable item

This operation has been deprecated and will be removed in the future!
Reason: Purchase items have been replaced by new line items.
This operation is replaced by https://docs.nitrobox.io/v2-preview/reference/addlineitem_1.
Deprecated since: 2024-07-29

Sunset at the latest: 2025-07-28

Please refer to our "API Lifecycle Management" and our "API Migration Guide" to find out more.

DEPRECATED: Use POST '/contracts/{contractIdent}/purchaseItems' instead. Creates a new billable item for a specific contract. For more information on billable items please see the model below.
Language
Credentials
OAuth2