What is the online registration system for tenants in Thailand and how can it be accessed?

There is an online registration system for landlords in Thailand to register tenants, which generates a TM30 form that can be used for immigration purposes, particularly for obtaining a residence certificate. The official registration site can be accessed at [https://extranet.immigration.go.th/fn24online/](https://extranet.immigration.go.th/fn24online/). Additionally, there is a mobile app connected to this system, but it may not be available in all app stores. Users typically receive a screenshot of the registration confirmation, which can be accepted by some immigration offices, although others may require a paper receipt from the TM30 form.