In the Shopping cart screen, In the section " Ship-To Address/Performance Location " , I need to replace the standard search help with my own custom seach help for the field "Name" .
Can you please tell me the procedured to acieve this ?
try like this
Copy FM B470_SHLP_CALL to ZB470_SHLP_CALL
And call your custom search help for the relevant field, in FM
RHF4_RFC_FIELD_VALUE_REQUEST parameter for shlpname
which is called inside the B470_SHLP_CALL
In the BADI BBP_DRIVER_DETERMINE
If FUNCTIONNAME = 'B470_SHLP_CALL '
FUNCTIONNAME = 'ZB470_SHLP_CALL '
let me know if it works