If you are receiving too many messages, you can turn off the Kit messages by going here and unselecting the messages which you do not want to receive.
In addition to Modalyst messages from Kit, you will also receive messages from Kit for their additional services such as Facebook or E-mail marketing opportunities, ad retargeting and reports based on your recent store performance. This means that Kit will send you marketing prompts for newest products added and bestsellers, however it does not include product recommendations to increase your inventory based on events.