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Mel_P
Helper I
Helper I

Unable to process Condition, invalid parameter types Null

The error message is "Unable to process template language expressions for action 'Condition' at line '1' and column '17227': 'The template language function 'less' expects all of its parameters to be either integer or decimal numbers. Found invalid parameter types: 'Null'.'."

 

The first time the flow ran and I got this error, I found a column with some empty fields. So I filled them in with either a choice of Yes or No. The second time, I could not find empty fields but found dynamic content to change. The third time, I had 10 emails result. But the emails do not follow the conditions. If a task meets conditions for starting, then a start message is generated. If the task is past due, then a past due message is generated. It seems the function for today is not valid as there are emails sent for both start and past due on the same task.

 

Below are screen shots ...

Mel_P_0-1634736657171.png

 

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2 REPLIES 2
ScottShearer
Most Valuable Professional
Most Valuable Professional

@Mel_P 

What type of column is Completed?  

If it is a Yes/No column, you need to test for false (entered in the expression window).  No will not work.

image.png

Can you post a screen shot of the expression used in your condition - I believe it is a formatDateTime() expression.

To compare to a SharePoint date, you need to use the yyyy-MM-dd date format.

 

 

 

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Scott

"Completed" is a choice column and in column settings the choices were defined as either "Yes" or "No".  I took your suggestion and changed the "Yes" to fx "true" and the "No" to fx "false".  Thank you, your suggestion did cause my initial error to go away. But the error now is "Action condition failed" with no other details and the flow status is failed. Although the flow resulted in some emails being sent. This is how the four conditions were set. and the result from Run History is below each one.

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