Don't. According to the query of official website of Dada Group, Dada Crowdsourcing is a Dada merchant APP, which is a mobile phone client for merchants to send bills. Crowdsourcing in the store only needs to submit materials, such as a copy of ID card and health certificate. Then you can have a mobile phone and a tram without training. Merchants only need to download the APP and register as Dada merchants. When there is a delivery demand, they only need to fill in the consignee information and call Dada delivery staff with one click.