1. Open the "My" page of the mobile APP and click the "Three horizons" icon at the top. Secondly, in the sidebar menu, click the "Invite Chat Friends" icon. Finally, on the page of inviting friends to chat, you can find the pos invitation code of Yihuilian mobile phone.
2. If the pos machine is purchased through an agent, the agent will provide the invitation code of Yi Huilian's mobile phone POS.
3. You can buy the pos machine directly from the POS machine provider. You can find the input box of the invitation code on the registration page, click the "Get Invitation Code" button, and the system will automatically send the POS invitation code of Yihuilian mobile phone to the mobile phone or email address.