Create credit billable item

This operation has been deprecated and will be removed in the future!
Reason: Adding line items with debitCreditIndicator = CREDIT are preferred over deprecated credit billable items.
This operation is replaced by https://docs.nitrobox.io/reference/addlineitem.
Deprecated since: 2024-07-29

Sunset at the latest: 2025-07-29

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

Use POST '/orders/{orderIdent}/lineItems' instead. Creates a new credit billable item for a specific Order.
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OAuth2