The major achievement of the Economic Community of West African States (ECOWAS) is that it has

The major achievement of the Economic Community of West African States (ECOWAS) is that it has widened the market for goods produced in West Africa. ECOWAS has established a free trade area among its member countries, which has removed barriers to trade such as tariffs and import/export restrictions. This has allowed for increased movement of goods and services across borders, which has facilitated economic growth and development in the region. Additionally, ECOWAS has implemented various policies and programs aimed at promoting intra-regional trade and investment, which has further expanded the market for goods produced in West Africa.