I'm getting this error when running EASIBI for the Primary installation. All installations have the same rate category and there isn't a contract 3 as stated in the error mesage.
"You simulated billing for contract 3. During this simulation, rate category has to be replaced by rate category . In the simulation period that you selected, a rate category change exists for contract 3. Rate category is used in addition to rate category .
The simulation scenario does not support billing simulation with more than one rate category."