The structure of the final paper consists of an introduction, five chapters, research and conclusion. This final paper will illustrate what customer loyalty and action Buy Croatian in the marketing field mean. It also gives a brief overview of what drives consumers and how marketing, habits, and motivation affect shopping habits. In the Buy Croatian campaign, the focus is on the domestic product, so the marketing significance of this is a big influence on the consumer. It is important to clarify this term within this paper and its meaning in the action Let's Buy Croatian. The action Let's Buy Croatian is very marketing and media-friendly, so the interest of consumers and retailers and manufacturers is increasing day by day. All retailers and farmers supported the marketing idea of Let's Buy Croatian, and Croatia's accession to the European union and the proclamation of certain products Originally Croatian also played a major role. The research part is based on the awareness of the customers with the marketing campaigns Let's Buy Croatian and whether this strengthens customer loyalty to this type of products or the marketing promotion is insufficient and did not approach the customers. The data obtained from this research contribute to the expansion of existing insights into consumer behavior towards domestic products.