Oracle Payables Tax - Unable to Change Tax Rate

Hi Guys,

In AP the tax engine has determined a tax rate which is not correct. I want to update this but its keeps reverting back to the tax rate that was determined.

I am carrying out the following actions

Edit Taxes > Cancel Line > Save Changes

Navigate to Manage Taxes > And then choosing the tax rate i want and then add the tax amount. On Save and Close the orginal tax rate is determined again when validating the invoice.

Any ideas how i can achieve this ?

Note: What is the difference betwen Edit Taxes and Manage Taxes ?

Bal