What are the limitations of downgrading a Vtiger CRM edition?

• When you downgrade your CRM edition, the booster pack quantity added is  displayed with ** .
• You will not be able to downgrade your CRM edition if you exceed the edition limit + booster pack quantity.
• For example, in One Enterprise edition, 25 custom modules are allowed. If you add a booster pack with quantity - 5, then a total of 30 custom modules are allowed for the edition ( 25+5=30 ).
• Now, if you downgrade the edition to One Pilot (which does not support custom modules) you can use only 5 custom modules from the installed booster pack quantity. And you must delete the extra custom modules before the downgrade as you will not be able to do it otherwise.