Generic Article creation Issue

Hi to all,

I am new to Retail, I was preparing for Generic Article creation.

1.) I created Merchandise Category and assign to hierarchy

2.) I created Characteristic and characteristic profile

3.) I assigned Characteristic profile to the Merchandise Category

4.) When the time i used MM41 there was a pop up menu and I input/selected the choices and press enter and back (F3)

there is a message " You must define at least one variant-creating characteristic".

What is this message all about and how can i resolve this? I cannot move on to the next level in MM41 only on the 1st stage.

Please help in this matter. Thank you.

Best Regards,

Ber