Within the context of the project titled “Strengthening Institutional Capacity for Single Window Systems in the OIC Member States” being implemented by the Ministry of Trade of Sudan, Single Window System Training was conducted between June 24th and 28th, 2018 in Khartoum. The training program focused on the role of single window systems in promoting and facilitating intra-OIC trade, and gathered 42 experts from the project owner Sudan as well as project partner countries Jordan, Turkey and Uganda to discuss selected issues on the implementation of single window systems in the OIC world.