In plain English
It means there is no waiting time before the change takes effect. The new terms apply now rather than on a future date or during a later period.
In context
Here, it says the plan change begins to apply now instead of at a later time.
- Situation
- Managing subscriptions, trials, renewals, proration, upgrades, and cancellations
- What it communicates
- states that the plan change starts now
Meaning limits
By itself, the phrase does not say what the change is, only when it starts to apply.
Examples
“The rent increase is effective immediately, not on 1 July.”
“After the review, they made the plan change effective immediately.”