What constitutes a marketing plan's seven components?
These seven components are people, product, price, promotion, place, packaging, and positioning. You must regularly review these seven Ps to ensure that you're on track and getting the best outcomes possible in the market today as products, markets, customers, and demands change quickly.
OR you can think this way:
What should a marketing plan include?

The marketing plan details the strategy that a company will use to market its products to customers. The plan identifies the target market, the value proposition of the brand or the product, the campaigns to be initiated, and the metrics to be used to assess the effectiveness of marketing initiatives.