# "No Trend Data Source available" on a secondary/cloud gateway — pens are configured in props

**URL:** <https://forum.inductiveautomation.com/t/no-trend-data-source-available-on-a-secondary-cloud-gateway-pens-are-configured-in-props/115566>\
**Category:** Ignition\
**Tags:** ignition83, perspective\
**Created:** [May 18, 2026, 5:22am UTC](https://forum.inductiveautomation.com/t/no-trend-data-source-available-on-a-secondary-cloud-gateway-pens-are-configured-in-props/115566 "2026-05-18T05:22:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kunal.purohit](https://avatars.discourse-cdn.com/v4/letter/k/e8c25b/32.png) [@kunal.purohit](https://forum.inductiveautomation.com/u/kunal.purohit)\
**Post date:** [May 18, 2026, 5:22am UTC](https://forum.inductiveautomation.com/t/no-trend-data-source-available-on-a-secondary-cloud-gateway-pens-are-configured-in-props/115566/1 "2026-05-18T05:22:16Z")

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**Perspective Power Chart shows "No Trend Data Source available" on a secondary/cloud gateway — pens are configured in props.pens with valid historian source paths, historian is RUNNING, tag history queries return data correctly from Tag Browser, but the Power Chart renders nothing. Same chart works on the main gateway. What is the correct historian source path format for Power Chart pens when running on a secondary gateway connected via GAN?**