ERPstuff - Oracle EBS Community

<font size="3">i completed the setup of tax but without usefulness
but i wish to find a method to disable tax in application
if anyone know it plz tell me
Thnx</font id="size3">

after i saved the requisition in purchasing module. this error message appeared to me:
An error has occurred during tax calculation
so i cant approve it
PLZ anyone help me to solve this issue
thnx to all

thank you