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Cron automation with deployment parameters

  • December 16, 2025
  • 1 reply
  • 6 views
mmeyers
Contributor
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I am just getting started with trying to use deployment parameters. When creating a scheduled automation, I thought I could use cron in a scheduled automation trigger but store the cron details in a deployment parameter. 

I took a working cron configuration and stored those details in a deployment parameter. Then when trying to enable the automation I got this error message in the debug log: Unable to assemble automation. Invalid Cron expression: {deployment.Trap_Daily_CRON}

I am selecting the deployment parameter from the menu when creating the cron configuration, not just typing this in so I had expectations that this would succeed.There doesn’t seem any way to get this working that I can see.

Is this something that is actually available?

This is on FME Flow Hosted 2025.1.3.

1 reply

j.botterill
Influencer
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  • j.botterillInfluencer
  • Influencer
  • December 17, 2025

Is the deployment parameter type = text

FME Flow supports four types of deployment parameters: Text, Password, Web Connection, and Database Connection

Getting Started with Deployment Parameters – FME Support Center

You ‘could’ attempt it with a password type, to see if it enscapulates the Cron expression text slightly differently

With automations there is also the Debug mode for development and troubleshooting. You can access the Debug log directly from the automation canvas or the Automations menu

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