# Undocumented Activation Methods

**URL:** <https://www.thethingsnetwork.org/forum/t/undocumented-activation-methods/42190>\
**Category:** Application Development\
**Created:** [December 16, 2020, 6:12am UTC](https://www.thethingsnetwork.org/forum/t/undocumented-activation-methods/42190 "2020-12-16T06:12:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![loti](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/loti/32/35303_2.png) [@loti](https://www.thethingsnetwork.org/forum/u/loti)\
**Post date:** [December 16, 2020, 6:12am UTC](https://www.thethingsnetwork.org/forum/t/undocumented-activation-methods/42190/1 "2020-12-16T06:12:19Z")

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The application API gives us the ability to register device programmatically. However, the documentation of which is incomplete.  
[https://www.thethingsnetwork.org/docs/applications/manager/api.html](https://www.thethingsnetwork.org/docs/applications/manager/api.html)

Toward the bottom of the above documentation. It reads  
 ![api_doc](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/c/f/cf040847b11f237338e4a2e7c7cddc4e696833be.png)

While `otaa` and `abp` activation methods are well understood, what is the meaning of the other activation methods?