eZee Front desk Configuration >> Advance Settings >> Rental >> Weekend Settings
You must have to define Weekdays Rates/Weekend Rates. When you change rate, it is applied on instance basis.
Case 2: Define business source wise tariff
You need to activate Define Special Room Rates to define business source wise tariff
Here choose business source to define tariff
Case 3: Add or revise business season wise tariff
Please refer below screenshot to define season
Here choose season to define tariff