Dear expert ,
I have problem in Partner function - customer master. I've created ZKUN Customer Account Group with copying from original one KUNA , but the problem is why the customer code is not automatically appears on column NUMBER in the Partner Function tab ? because when I input manually with new customer code , the error message about "customer is not defined" will appears so , I can't save customer master data, but when I try to make the customer by using the original one Account Group KUNA, customer code will automatically appears.
What should I do ? there a customization step that I missed ?.
Thank you in advance for your help.