GATP allocation by customer with wildcard

Hi

I am facing a situation in GATP product allocations . We are using product allocations for ATP check by material, location and customer.

In APO i created characteristics combinations for the material/location/customer. customer has wildcard of "**********". all configuration of allocation is OK.

Now the situation is when i am doing a simulation for ATP check for the customer specified in characteristics combinations in planned area, every thing works fine. yet when customer doesn't exist in pre-defined CVC, i am getting an error with explanation of.

"The system could not determine the following data The characteristic combination of the item"

I am expecting to use "*********" to replace the undefined customer.

Has any body faced similar situation ?

Your help is highly appreciated

Regards

Raymond