why is my shein package taking so long? There can be several reasons why your Shein package is delayed, including customs processing, high order volumes, and shipping method. Shein, being an international e-commerce platform, ships items from various locations, and sometimes packages can get held up in customs or face delays during transit. Additionally, if the order is coming from a busy warehouse or during peak shopping seasons, such as holidays, delays may occur. It’s a good idea to check the tracking information for any updates on your package’s status and to reach out to Shein’s customer service if you experience significant delays.