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smatheson
Frequent Visitor

Expression Evaluation Failed - Switch keeps failing test

Hi there,

 

Working on a switch-based flow to send emails out to contacts in an Excel spreadsheet. When I try to run the flow, I get the following error message:

smatheson_0-1714142535954.png

This comes up on every single attempted email in the spreadsheet. I hear that it's an issue with filtering out null values. I've attached the flow I'm using, as well as the Excel it's based off of. Thanks so much in advance!

 

smatheson_1-1714142551846.png

smatheson_2-1714142868736.png

 

 

1 ACCEPTED SOLUTION

Accepted Solutions

@smatheson

When working with dates in excel you need to ensure you set the datetime format as ISO8601. 

creativeopinion_1-1714145179690.png

 

 

Take a look at this section of my recent tutorial: How to Work with 📆 Dates in Power Automate | Example Scenarios and Tips & Tricks

 

In this section I show you how easy it is to use an expression to output dynamic text. Setting variables is actually quite easy. Happy to walk you through it. It'll help streamline your flow. This is especially helpful if some of the content from your email is the same. You will only need to edit a single action and insert custom content (based on the value in your spreadsheet) as necessary.

 

Are you easily stumped when working with Dates in Power Automate? In this Power Automate tutorial, I’ll show you how to compose an expression that will return a future date, a past date, how to count the number of days between two dates, how to check for a birthdate and anniversary date as well as tips and tricks when working with dates in Power Automate.

 

I’ll cover some common use cases and concepts that can help you to build better Power Automate flows. Feel free to skip ahead using the timestamps listed below. I’ve also linked a few other tutorials that you might be interested in as well.

 

IN THIS VIDEO:

 4 Date Functions You Need to Know

 How to use the Convert Time Zone Action

 How to Get a Future Date

 How to Get a Past Date

 How to Return SharePoint Items Due in a Number of Days

 How to Return SharePoint Items Due within a Date Range

 How to write a Filter Query for SharePoint Items Due in 30, 60 and 90 Days

 How to Calculate the Number of Days between Two Dates

 How to Check for a Birthdate and Anniversary Date

 How to work with Dates and Times in Excel

 How to use a Manual Trigger with Date Input

 How to Output Dynamic Text with an Expression

 How to Check if a Date Falls on a Weekend

 

Hope this helps!

If I helped you solve your problem—please mark my post as a solution .
Consider giving me a 👍 if you liked my response!

👉 Level up your Power Automate skills by checking out my tutorials on YouTube
👉 Tips and Tricks on
TikTok and Instagram

 

 

View solution in original post

5 REPLIES 5
smatheson
Frequent Visitor

smatheson_1-1714143204790.png

Including a slightly closer shot of the flow

 

@smatheson Instead of using the switch function to compose an email for each case, have you considered using variables instead? or expressions? This way you only need to have a single Send an Email (V2) action rather than having 6 of them? 

 

Include a Filter Query in your List Rows present in a table action to filter out rows where the dynamic content you are using in the Switch action is empty.

 

For more flow troubleshooting tips—check out this YT Tutorial: 5 Power Automate Troubleshooting FAQs and Helpful Tips for Creating Better Flows

 

In this Power Automate tutorial, I explore 5 frequently asked questions that pop up when troubleshooting a flow. If you’d like to to level up your Power Automate flow skills and learn how to troubleshoot your Power Automate flow—this tutorial is for you!

 

IN THIS VIDEO:

 How to troubleshoot a false Condition action result

 How to get dynamic content when it isn’t selectable from the list of dynamic content

 How to troubleshoot an Apply to Each action that isn’t looping through

 How to troubleshoot a skipped Apply to Each action

 How to troubleshoot a Filter Query

 How to use a SharePoint yes/no column in a Filter Query

 How to use Compose actions to troubleshoot a Power Automate flow

How to troubleshoot multiple emails being sent

 How to troubleshoot multiple Teams messages being sent

 

Hope this helps!

If I helped you solve your problem—please mark my post as a solution .
Consider giving me a 👍 if you liked my response!

👉 Level up your Power Automate skills by checking out my tutorials on YouTube
👉 Tips and Tricks on TikTok and Instagram

Hi creativeopinion, thanks taking a look at my issue! I'm still super new to Power Automate, so variables and expressions are a bit outside my knowledge level at this point.
I'm wondering if the problem stems from a change I keep noticing when I load the flow. Instead of the date from the Excel sheet (should be "4/26/24"), I get this random string of numbers.

smatheson_0-1714144674876.png

 

@smatheson

When working with dates in excel you need to ensure you set the datetime format as ISO8601. 

creativeopinion_1-1714145179690.png

 

 

Take a look at this section of my recent tutorial: How to Work with 📆 Dates in Power Automate | Example Scenarios and Tips & Tricks

 

In this section I show you how easy it is to use an expression to output dynamic text. Setting variables is actually quite easy. Happy to walk you through it. It'll help streamline your flow. This is especially helpful if some of the content from your email is the same. You will only need to edit a single action and insert custom content (based on the value in your spreadsheet) as necessary.

 

Are you easily stumped when working with Dates in Power Automate? In this Power Automate tutorial, I’ll show you how to compose an expression that will return a future date, a past date, how to count the number of days between two dates, how to check for a birthdate and anniversary date as well as tips and tricks when working with dates in Power Automate.

 

I’ll cover some common use cases and concepts that can help you to build better Power Automate flows. Feel free to skip ahead using the timestamps listed below. I’ve also linked a few other tutorials that you might be interested in as well.

 

IN THIS VIDEO:

 4 Date Functions You Need to Know

 How to use the Convert Time Zone Action

 How to Get a Future Date

 How to Get a Past Date

 How to Return SharePoint Items Due in a Number of Days

 How to Return SharePoint Items Due within a Date Range

 How to write a Filter Query for SharePoint Items Due in 30, 60 and 90 Days

 How to Calculate the Number of Days between Two Dates

 How to Check for a Birthdate and Anniversary Date

 How to work with Dates and Times in Excel

 How to use a Manual Trigger with Date Input

 How to Output Dynamic Text with an Expression

 How to Check if a Date Falls on a Weekend

 

Hope this helps!

If I helped you solve your problem—please mark my post as a solution .
Consider giving me a 👍 if you liked my response!

👉 Level up your Power Automate skills by checking out my tutorials on YouTube
👉 Tips and Tricks on
TikTok and Instagram

 

 

Changing the date format and adjusting the DateTime format made the flow work correctly, thank you! I'm excited to keep learning, thanks for the video links!

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