3490358 - Error FF 762 "Condition Type &1 tax code &2 does not exist" While using Journal Entry Post API_ SAP S/4HANA Cloud Public Edition

Posting with the API "Journal Entry - Post" fails because of the error FF 762 "Condition Type &1 tax code &2  does not exist"

 "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP S/4HANA Cloud Public Edition

The issue can be caused by wrong <TaxItemClassification> used in payload

Check the Tax code in configuration activity "Define Tax Code for Sales and Purchase" SSCUI ID 101016

Make sure the Account Key of the related tax type is used as <TaxItemClassification> in payload.

For example, for Tax code J0, <TaxItemClassification>VST</TaxItemClassification> should be used.

Note, This field TaxItemClassification is mandatory if the ConditionType is not provided. 
See details in SAP Help Portal: ProductTaxItem

SAP Help Portal: Journal Entry - Post (Synchronous) > ProductTaxItem

Blog: Troubleshooting Common Journal Entry API Errors - A Quick Guide 

FF 762, FF762, Condition Type MWVS tax code G0 does not exist, Condition Type, TaxItemClassification , KBA , AC-INT-2CL , Accounting Interface (Public Cloud) , Problem