However, this number does not exist to activate cash app card for accepting cash. You can follow a few simple steps and the map will become active. You should Firstly, you just need to open the Cash app on your device. Then just click on the money card symbol. After that, select the option to activate the cash application card. So use your phone's camera to scan QR codes. If successful, the card is ready for use. You should visit the website for more information related to activating the cash app.