Hello!
I'm new to SAP CRM and I need your help . We are implementing CRM Standalone and I have some problems with the above mentioned error.
Basically when I create a service order and I add a service product, there are no problems, but when i add material product "Pricing error: Mandatory Condition 0TTE is missing" shows up and I can't save the service order.
Can you please give me detailed explanation how to fix this problem. 
Any suggestions are welcomed.
Thanks in advance!