error when setting security on sales order confirmation function

Dear All,

I created a custom role for confirming sales orders when testing the role I got the error “Access denied: SalesFormLetter_Confirm”. I have then added in the related privilege in AOT a permission to a server method named

SalesFormLetter_Confirm.confirm . yet I still get the same error. what is missing

Thanks for your help

It worked well after adding a reference to formletter service operation