GBP/GBX/GBp

Imported from previous forum

[ original email was from Corwin Yu - cyu@sasiny.com ]
All,

This is not a FOREX question, but somewhat related. What is the proper code/process for handling London/SETS equity trading when sending orders for instruments denominated in pounds vs pence?

For example, if a client sends an order in GBP and the current instrument they are bidding for is in pence (GBp/GBX), do we normalize, or reject? And is GBp the proper code for pence, or is it GBX? I realize this may be a best practice question, I am just looking for insights.

Regards,
Corwin Yu