# Getting MissingFieldError

**URL:** <https://forums.losant.com/t/getting-missingfielderror/1612>\
**Category:** Help\
**Tags:** custom-node\
**Created:** [March 15, 2019, 7:35pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612 "2019-03-15T19:35:24Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Lars\_Andersson](https://avatars.discourse-cdn.com/v4/letter/l/f05b48/32.png) [@Lars\_Andersson](https://forums.losant.com/u/Lars_Andersson)\
**Post date:** [March 15, 2019, 7:35pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/1 "2019-03-15T19:35:24Z")

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Im getting “Missing FieldError” and not sure why.

 ![image](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/2X/0/09bcb6801068ca14d069f395d5279cfe2b26f45c.png)

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**Author:** ![anaptfox](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/anaptfox/32/873_2.png) [@anaptfox](https://forums.losant.com/u/anaptfox)\
**Post date:** [March 15, 2019, 7:37pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/2 "2019-03-15T19:37:32Z")

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@Lars_Andersson,

Can you DM me the application ID and workflow ID of this application?

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**Author:** ![anaptfox](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/anaptfox/32/873_2.png) [@anaptfox](https://forums.losant.com/u/anaptfox)\
**Post date:** [March 15, 2019, 7:48pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/3 "2019-03-15T19:48:04Z")

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Hey @Lars_Andersson,

That Custom Node you are using is expecting a temperature value, it looks like your workflow is being triggered without one.

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**Author:** ![Lars\_Andersson](https://avatars.discourse-cdn.com/v4/letter/l/f05b48/32.png) [@Lars\_Andersson](https://forums.losant.com/u/Lars_Andersson)\
**Post date:** [March 15, 2019, 8:02pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/4 "2019-03-15T20:02:00Z")

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Yeah, I see that now, but it’s not always. So the Workflow is not wrong then?

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**Author:** ![anaptfox](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/anaptfox/32/873_2.png) [@anaptfox](https://forums.losant.com/u/anaptfox)\
**Post date:** [March 15, 2019, 8:04pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/5 "2019-03-15T20:04:52Z")

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Nope, your workflow is not wrong. The Custom Node requires values that your device isn’t providing.

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**Author:** ![Lars\_Andersson](https://avatars.discourse-cdn.com/v4/letter/l/f05b48/32.png) [@Lars\_Andersson](https://forums.losant.com/u/Lars_Andersson)\
**Post date:** [March 15, 2019, 8:14pm UTC](https://forums.losant.com/t/getting-missingfielderror/1612/6 "2019-03-15T20:14:18Z")

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Yup, I fixed it with the “Validate Payload” node