Cross-marketing with proper planning and organization has guaranteed advantages: ● increase in sales; ● expansion of the customer base; ● significant savings in advertising costs; ● improving the reputation of the company; ● increase brand awareness; ● increase customer loyalty. However, despite the apparent simplicity, the organization of the project together with an advertising partner can turn into serious problems for the participants. Therefore, it is important to consider a few simple rules: 1. Choose the right partners. It should not be your competitor, but your target audience should match. These may be manufacturers of related products or services, about the same price segment and with a positive reputation. 2. Mutual benefit for all participants. No need to agree to disadvantageous cooperation. It is important to soberly evaluate your own resources and capabilities of the partner company and conclude the most specific agreement. 3. Monitoring compliance with the te