Attach User exit to standard T-Code
I would like to know how to attach User exit program to standard program/Transaction.
We are using KO01 Create Internal order in which we want to control the naming convention of the Internal order numbers.
The Number range has been already defined as external in the Order Type.
We have a policy of prefixing the country code before the internal order number.
Order belongs to UK start with UKXXXXX. The system should give an error to user while creation if UK is not entered.
Please check the below exits:
COOPA002 - Customer function for master data maint. - internal orders
COOPA003 - User-Defined Fields in the Order Master
COOPA004 - Customer function: Print order master data
COOPA_01 - Customer check modules for internal orders