Here is the corrected version of your text: In short, in the communication strategy, you lay down the message and the communication channels with which you will reach whom. At each stage of the customer pyramid and customer journey, you may communicate in a different way and via different channels. A suspect may need different information than an existing customer, and so does the choice of communication channel.
With an existing customer, of whom you have a lot of information, you can communicate in much more detail and make more targeted offers.
Direct Mail is often a good way to make a customised offer with variable text and images (digitally printed). With the right choice of paper, concept and technical creativity, you can create a challenging mailpack that grabs attention on the doormat and invites you to open it.