Managing plan discounts and early bird

I want my plans to be discounted for a certain period, what's the best way to manage this?
I don't see any discount feature
I could create different plans (full price / early bird), but then I don't see a way to automatically switch from one to the other on the closing date

Any suggestion?

You need to install CBSubs Promotions and you can then add discounts to your plans either by coupon code or always applied. It supports date range, conditions, can be limited to specific plans, limited to a number of uses, and more.

Thanks, I installed it but when I try to add a promotion it gives an error:

Table 'formalms_testing.#__cbsubs_geo_zones' doesn't exist

Do I need to install something else?

pastoweb wrote: Thanks, I installed it but when I try to add a promotion it gives an error:

Table 'formalms_testing.#__cbsubs_geo_zones' doesn't exist

Do I need to install something else?

Yes, CBSubs Taxes.