While Posting the Sales order Invoice, system should validate the Item sales tax and sales tax group. If the sales tax group is missing in sales order then system should give error message or Infolog.

However this same functionality is working fine in Free text invoice posting. If the post the free text without tax combination system will give the Infolog before posting.

Error message->
Both the VAT group and the item VAT group must be specified on a free text invoice line.

Prerequisite:-

Account receivable->Account Receivable Parameter-> Ledger and sales tax tab
Enable check box Mandatory item VAT group

General ledger-> General Ledger Parameter->Vat Tab
check tax code= Error Validate VAT code marked "Yes"

Repro
Account Receivable->Invoice->All Free text Invoice->New

Select main account 110180
Enter Item sales tax group
Blank sales tax group filed
enter amount
Save
Error message->Both the VAT group and the item VAT group must be specified on a free text invoice line.

LCS Issue 521475