Issue while Approving the PO -- Requisition is approved

Hi All,

We have got an issue, wherein the requisition is approved and while approving the PO created for this requisition, getting the below mentioned error messages:

Error Messages:Unexpected error occurred during Tax Calculation.

Exception: 023 - An unexpected error has occurred. Please contact your system administrator.

Please correct the problem or contact your System Administrator.

Unable to approve the PO and thereby receive the goods and raise an invoice and make payment to the vendor.

Request your help in resolving this issue for us to able to approve the PO as well as close the same after receipts, invoice and payments.