Is There Any Way To Change Attached PDF File Name On E-Mails?

Hello,

I writed a code block for auto-send mail to some users with a spesific layout and schema. So its working.

But i want to change file name of the pdf, tried to some ways but the problem still going on. Can somebody help to fix this.

Actually i dont know what should i use for the syntax to attach_ parameter. When i remove ‘###’ in the code this mechanism does not work for some how.

I want to use this like this:

attach_ := supplier_info_api.get_name(purchase_order_api.get_vendor_no(order_no_))||’ - ’||order_no_;

         attach_ := '###'||Pdf_Archive_API.Get_Id(result_key_,print_job_id_)||'###'||to_char(print_job_id_)||'###'||to_char(result_key_)||'###' ;
         text_   :=                                         
                                           '<br/>'||'Dear Sir/Madam,'||
                       '<br/>'||'We kindly request ,the products which are in our Purchase Order with the attached details must be delivered to the factory '||'<u><b>'||'on the specified dates.'||'</u></b>'||
                       '<br/>'||'<u><b>'||'Please confirm the arrival dates in a day.'||'</u></b>'||
                                           '<br/>'||'Best Regards.';
         
         Command_SYS.Mail(

            from_user_name_ => 'IFSAPP',
            to_user_name_ => to_,
            text_ => text_ ,
            attach_ => attach_,
            subject_ => subject_,
            from_alias_ => company_ ||' - IFS 10');