VAT amount not reflecting in AP invoice when PO is edited after receiving

Summary

VAT amount not reflecting in AP invoice when PO is edited after receiving

Content

We have created a PO with VAT as 12 % and have received the PO.Later the PO is edited and the VAT is changed to 5%.

Now the revised VAT amount is not getting updated while we are matching invoice against the PO.

We need to return the receipt and again do the receiving inorder to reflect the correct VAT% in invoice.

Kindly let me know if this is the standard functionality.

Version

Oracle Fusion Release 13