Workflow Errors

When-Then Error: Handler for action X Not Found#

The following error may occur in production if you use a when-then block in your workflow:

Code
custom-workflow:when-then-01JE8Z0M1FXSE2NCK1G04S0RR2:invoke - Handler for action \"when-then-01JE8Z0M1FXSE2NCK1G04S0RR2\" not found...

This occurs if the when-then block doesn't return a step's result and doesn't have a name specified. You can resolve it by passing a name as a first parameter of when:

Code
1const result = when(2  "custom-when-condition"3  // ... rest of the parameters4)

Learn more about passing a name for when-then in this documentation