Characteristic combinations generated but no input-ready cells are displayd

Hi gurus,

i have a Characteristci relation class used in ip-layout.There alid values for some characetristics are set to be valid. For example Brand, cost division,Main Channel,.....And the valid values are also entered in a table to create the combinations.

Then the class is executed and the message says 42 characteristic combinations created but the IP-Layout shows no input ready cells despite it shows yellow not input ready cells. It looks like combinations could not be generated but the message says 42 combination generated.

Can anybody suggest me something?What could the reason be?

Thanks and regards,

Murat