The term foreign trade business means the exchange of goods and services on a global level, when business entities are from different countries or legal circles. With the accession of Croatia to the EU on July 1st 2013, Croatia became the 28th member state., thus opening a new chapter in foregin trade. The European Union is one of the world's most outward-oriented economies, with one of the fundamental principles being free trade between member states. The abolition of customs borders between member states provides easier access to a market of more than 500 million users, which is extremely important for citizens since it allows for a greater choice of imported products and services and lower prices and better quality of domestic products and services under competitive pressure, as well as more successful placement of Croatian products and services on the European and world market. It isvery important to develop a good customs system, so that customs continue to serve as a source of finance and additional protection of domestic production, and to successfully follow global trends. This report will present the importance of customs and customs procedures in the economy of a country, and as the main objective of this work one of the customs procedures will be analyzed - customs warehousing. The definition and types of customs warehousing, the procedure for submitting applications and issuing permits, records and placement of goods in a customs warehouse, as well as regulations related to warehousing itself will be clarified. Foreign trade has experienced a continuous increase since the beginning of the period of strong digitalization as the advent of the Internet has made products and services more easily available on the international market. Nevertheless, the economic crisis that arose due to outbreak of the COVID-19 pandemic, has had negative consequences on the international trade. This report will present the effects of the pandemic on the foreign trade of the Republic of Croatia.