CRM IC WebClient: Check Web Input for OO

Question

Hi all experts,
I am new to the enhancement of CRM. So, all kind of helps will be greatly appreciated.
For your info, I'm using CRM version 5.0
My requirement is to add extra field ID number at Identify Account Screen at Webclient. I have extended an extra field at CRM using EEWB and then added the new field to tab Identify Account (I have added the field to the standard context note CUSTOMER) at Webclient using BSP_WD_Workbench. Everything looks okay.
But there is new addition on checking on the field upon saving, I need to give an error message if the ID number field is empty when created for certain business partner group only....
Should i add my codes at method EH_ONSAVE at the implementation class or the ZL_CRM_IC_BUPACREATE_CN00 at the implementation context?
As I am quite new with the Object Oriented class thingy... any advice or reference code will be great. thanks.

Answer 1

Hi Mervyn,
I usually do the checking in the implementation, not the context node. The event handler for save is a good place. One note, if you are overriding an existing event handler, you will need to do your error handling before calling your "super" handler especially if you want to prevent it from saving.
Hope this helps.
Sincerely,
Glenn