The phrase "activate a plan" is correct and usable in written English.
You can use it when referring to the initiation or implementation of a specific strategy or course of action.
Example: "Once we finalize the details, we will activate a plan to address the upcoming challenges."
Alternatives: "implement a plan" or "execute a plan."
Prince George's officials discussed but never activated a plan to put packets online, which most families could have downloaded as PDFs from school Web sites.
A network of northern Tajik governors, former intelligence and defense officials, along with an unknown number of army and police commanders, apparently activated a plan for a coup to install their favored Presidential candidate, Abdullah Abdullah, a former foreign minister.
As soon as they found out about the reduced episode order and vague promise of a winter premiere, the two creators activated a plan they had been batting around for some time: viewing parties with the show's fans.
With 18,000 United States Marines now in Helmand, the American generals commanding the war effort have activated a plan to relieve the pressure on the British and increase the challenge to the Taliban, who have fought ferociously to maintain their strongholds along the lush Helmand River valley.
What was TPB's response, after activating a Plan B, as it were, thereby bringing the site back online?
In the aftermath of the storm, the Mexican navy activated a plan to provide aid.
Since the iPhone XR, iPhone XS and iPhone XS Max have Dual SIM with a nano-SIM and eSIM, it allows users to activate a cellular plan from their carriers without having to use a physical nano-SIM.
The ultimate goal: to create and activate a detailed action plan to help you grow and scale your company.
Weber Shandwick's research has found that the average time it takes companies to activate a social media plan to respond to a crisis is 38 hours.
Health risk information (internal or environmental) informs the cognitive representation of and/or the emotions associated with a health threat, which in turn activates a coping plan, followed by an appraisal of the coping plan [ 18].
