Unable to POST (Update) Transaction Business Category in AR Invoice through API

When creating a Manual AR Invoice for a Transfer Order via API, the Transaction Business Category does not update correctly. It defaults to SALES_TRANSACTION, even when we attempt to set it to SALES_TRANSACTION / SALES_EXPORT_LUT.

• In manual transaction creation, the hierarchy is displayed as SALES_TRANSACTION / SALES_EXPORT_LUT, and users can directly select SALES_EXPORT_LUT.
• However, when creating the transaction through the API, the system only stamps the parent category (SALES_TRANSACTION) instead of the child (SALES_EXPORT_LUT).
• Additionally, when retrieving the transaction using the GET API, the business category value is returned as