After a marketing campaign ends, the real work starts. First, look at the results and compare them with your original goal. Check what brought clicks, sales, or signups, and what failed to work. Write these points down so they are not forgotten. You should also clean your data and save useful content like ads or emails. This review helps you improve the next campaign instead of guessing. Skipping this step means repeating the same mistakes again. What steps do most teams take next after review to plan future campaigns better?