The correct answer to this open question is the following.
Although you did not include any specific context or references, we can say the following.
The five planning steps that are required to have good business communication are the following.
1.- Establish attainable and specific goals. You can use the SMART formula.
2.- Identify who ypur audience is and where they are so you can be effective in sending your messages.
3.- Prepare the right strategy to implement your program. Have your communication department on the same page.
4.- Prepare the proper budget so you can run your program.
5.- Perform your program, monitor it, and evaluate your results.
For instance, Walmart is a corporation that makes communication a priority and invests time and money to run communications programs so every employee in the corporation is on the same page and can perform their jobs effectively, eliminate rumors, and be productive.