Internal order groups

Hi expert,

I have a problem about internal order groups.

I have created a group and I have inserted two internal order in it.

On these orders there are various actual and plan costs.

When I run a report for internal order, for exaple S_ALR_87012993 (Orders: Actual/Plan/Variance), the report return this message of error: N. 0105 - Group XXX does not exist. Instead my group exists.

Can you help me?

Thanks

Nicola