# Generate license for redundant gateway

**URL:** <https://forum.inductiveautomation.com/t/generate-license-for-redundant-gateway/102774>\
**Category:** Module Development\
**Tags:** vision\
**Created:** [February 24, 2025, 11:55am UTC](https://forum.inductiveautomation.com/t/generate-license-for-redundant-gateway/102774 "2025-02-24T11:55:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\
**Post date:** [February 24, 2025, 11:55am UTC](https://forum.inductiveautomation.com/t/generate-license-for-redundant-gateway/102774/1 "2025-02-24T11:55:40Z")

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Hi

I'm a little confused on how to generate license key for my custom module on Vision Showcase project when targeting redundant gateway.

There is parameter or setting to tell this license can only be used for redundant system

Thanks for the help.

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<div class="post-metadata">

**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:** [February 24, 2025, 12:43pm UTC](https://forum.inductiveautomation.com/t/generate-license-for-redundant-gateway/102774/2 "2025-02-24T12:43:34Z")

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The convention is to add a `backup` boolean license parameter, set to `"1"` or `"true"`. I've always written my activation checks to enforce this when present (by check the redundancy state for `isBackup()` when that parameter is present.