How To customise PO number with Prefix based on document type

[spartans007]

Hello,

I have this requirement to add a prefix before PO number based on document type.

Also i have to define no range for each doc type.

For example: I have emergency doc type : Prefix E00001 to E19999

Doc type : Sample - Prefix S00001 to E19999.

So based on doc type i have to define number range and add a prefix too.

Can someone help me out with this. Or guide me with the process.

Thank & Regards,

Alex Dsouza