PREVENT INTEREST (STOP INTEREST) CHARGES in AR (version 11i)

Hello,

We've a client with numerous customers that are charge interest on their outstanding balances.  They wish to prevent such charges to occur on a specific customer - is that possible by just unchecking the 'Charge Interest' and 'Compound Interest' boxes wihtin the Address tab "Profile: Document Printing" under heading '''Finance Charges'''  OR IS THAT EVEN PERMITTED??

Thanks  PN