# EAM Edition License Functionality

**URL:** <https://forum.inductiveautomation.com/t/eam-edition-license-functionality/101123>\
**Category:** Ignition\
**Created:** [January 20, 2025, 9:56pm UTC](https://forum.inductiveautomation.com/t/eam-edition-license-functionality/101123 "2025-01-20T21:56:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ben522326](https://avatars.discourse-cdn.com/v4/letter/b/b4bc9f/32.png) [@Ben522326](https://forum.inductiveautomation.com/u/Ben522326)\
**Post date:** [January 20, 2025, 9:56pm UTC](https://forum.inductiveautomation.com/t/eam-edition-license-functionality/101123/1 "2025-01-20T21:56:34Z")

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Hoping someone can clarify the EAM edition licensing for me...

I see that there are two licensing editions to EAM: 'Single Controller or Agent' and 'Controller + Unlimited Agents'. If I were to purchase the 'Single Controller or Agent' edition, does that mean I can only set one gateway as the controller OR one gateway as an Agent?

If so, what exactly would that license do for me if I don't have any Agent gateways to execute tasks on? Would I have to purchase another 'Single Controller or Agent' license for each Agent Gateway until it makes sense to purchase the 'Controller + Unlimited Agents' edition?

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 20, 2025, 10:07pm UTC](https://forum.inductiveautomation.com/t/eam-edition-license-functionality/101123/2 "2025-01-20T22:07:36Z")

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The single license is mostly for small quantities of servers, or where some gateways have EAM already present (modern Edge, IIRC).

If you have a large set of standard edition gateways, you should buy the controller+unlimited and put it on your central controller.