The OData entity BusinessDocumentTaxTransactions only includes the basis amount in transaction currency.

D365FO allows to report tax in a currency different from the transaction and accounting currency and to make this entity complete it should include all three currency amount groups:

ACCOUNTING CURRENCY

• Amount Origin
• Actual sales tax amount
• Actual nondeductible sales tax

SALES TAX - CURRENCY

• Amount origin
• Actual sales tax amount
• Actual nondeductible sales tax

TRANSACTION CURRENCY

• Amount origin
• Actual sales tax amount
• Actual nondeductible sales tax