Cannot update Tax Classification Code in PO using rest api

Summary:
Cannot update Tax Classification Code in PO using this rest api

REST API for Oracle Fusion Cloud Procurement - Update one schedule

Content (please ensure you mask any confidential information):

Hi

We want to update Tax Classification Code in PO using rest API. But we cannot update that. We are using this rest api:

REST API for Oracle Fusion Cloud Procurement - Update one schedule

This is our payload:

{"TaxClassificationCode": "VAT IN 12% NON PPNBM",
"TaxClassification": "VAT IN 12% NON PPNBM"}

We also test to update using ADFDI, but the error appear:

Attribute set for TaxClassificationCode in entity DraftPurchaseOrdersRestServiceAM.DraftPurchaseOrderLineVO_schedules_DraftPurchaseOrderLineVOToDraftPurchaseOrderLineLocationVO_DraftPurchaseOrderLineLocationVO failed (27004)