issue with email address maintained in IW32 PM order

Hi ,

I want an email to be triggered if  a PM order is created and I want to send that to a group of people , for suppose if the partner type is AB we want to send it to a group of people ..

For partner type AB there is  a partner number maintained and from that partner number I want to get the email id maintained for that partner number.

Please suggest how can I get that.

Thanks,

RG