No option to include dynamic content in switch case

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Posted on by webbrewer

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No option to include dynamic content in switch case so I used text - tried "yes" and "true". Getting error:

The execution of template action 'Switch' failed: The result of the evaluation of 'scope' action expression '@triggerBody()?['Check_x0020_here_x0020_to_x0020_']' is not valid. It is of type 'Boolean' but is expected to be a value of type 'String, Integer'.

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Pstork1 68,697 Most Valuable Professional on at

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Try wrapping the field in a String() function using the expression tab. That should output the boolean as text. But if its Boolean, why use a Switch. Booleans only have two values. In that case you would be as well off using a Condition.

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webbrewer 338 on at

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Initially, I used a condition but if the response was "no" the flow failed. I tried a switch control to see if that resolved the issue. There's no action required if the response is "no", so I just need the flow to continue to the next step, but it doesn't.

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Pstork1 68,697 Most Valuable Professional on at

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There's a common problem that comes up when working with boolean fields in a condition. When testing against true/false the test is case sensitive. The way to fix that is to use the true/false enumeration rather than just typing in true or false. To get the enumeration value insert the value using the Expression tab in the dynamic content dialog. As you type true or false it will show the enumeration value in the intellisense. Picking that will always test the value appropriately. Here's a screenshot.

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webbrewer 338 on at

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Yep, that's the way I set up the condition. It fails to move to the next step if the response is false, I assume because no action is specified in the "false" option. Is there an action to force it to move on regardless of response in the condition? Or do I have to add some random action there?

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Pstork1 68,697 Most Valuable Professional on at

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It should move on to the next action even if there isn't anything there. If you just want to put something there to test it you can just use a Compose Action with a static value. But when you say next action do you have more than what is shown in your screenshot? Because your screenshot doesn't show any next action. Just the actions that are taken on the yes side.

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webbrewer 338 on at

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Ok, now it moves on to the switch action, but fails there because it finds a "null" value instead of a string? There are 3 dynamic choices offered - get item, update item and when an item is created - but no hint as to which one to use. The interface is really frustrating....

I've now tried all 3 flavors and all throw an error. Hard to imagine how Msft could make this any less intuitive.

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Community Power Pla... on at

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@webbrewer

If the Condition action block is working now, why are you still using the Switch?

Could you maybe give a little background/context for your Flow to give an understanding of what it is you want it to do?

thanks,
Kyle

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webbrewer 338 on at

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Sure.
When item is created
Condition checks value in a boolean field and if true, updates another field with manager email
Switch checks value in a choice field and sends a different email depending on the choice value

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Community Power Pla... on at

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@webbrewer,

thank you,

You're sure that

1. You are passing in something to be checked against the cases, and
2. Each of your cases has something to check against?

Those are my top guesses as to why the error message would say that the type is "Null".

Then, is there the possibility that nothing was chosen in the choice field?

thanks,
Kyle

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webbrewer 338 on at

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Yes.
Item in SP:
A

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