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Assign user value to Boolean Flow Automation Parameter?

  • June 25, 2026
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arnold_bijlsma
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I have a Flow Automation that is triggered by webhook with various parameters within the URL. I can assign those user parameters from my webhook to my workspace parameters, unless they are Boolean parameters. Those are just shown as tickboxes without being able to getting assigned a user value. Am I missing something?

The two Boolean parameters in the green box cannot be assigned a user key value.


We’re on FME Flow 2025.1

The current workaround seems to be to change the User Parameter type in FME Form(!) from Boolean to Choice

Best answer by luke.hicks

Hi ​@arnold_bijlsma,

Unfortunately, booleans being shown as a checkbox is a type system constraint.  Boolean parameters do not support dynamic assignments from automation attributes. The Choice parameter or a Text parameter would be your go-to option in these scenarios.

​​​ ​​​ ​​​​​-  Luke H

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      luke.hicks
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      • June 29, 2026

      Hi ​@arnold_bijlsma,

      Unfortunately, booleans being shown as a checkbox is a type system constraint.  Boolean parameters do not support dynamic assignments from automation attributes. The Choice parameter or a Text parameter would be your go-to option in these scenarios.

      ​​​ ​​​ ​​​​​-  Luke H

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