cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Biswapati
Level: Powered On

Don't send email if the flow body is empty

Hi,

I have created a Flow to call the kusto function and email the kusto object as Bar chat. But I don't want to send an email if the kusto function return null or empyt. How to validate this. I have put the condition expression before sending email and try but didn't work as expected. Please let me know how to validate it. Any help will be appreciated.

 

FlowWithCondition.PNGFlowWithConditionExpression.PNG

8 REPLIES 8
Community Support Team
Community Support Team

Re: Don't send email if the flow body is empty

Hi @Biswapati,

 

Which connector do you use in your “Run query and visual results” action?

I don’t find the connector on my Microsoft Flow, so I could not make a test on my side.

According to the screenshot that you provided, please take a try to type the following formula in Condition box:

@empty(body('Run_query_and_visualize_results'))

20.JPG

 

Best regards,

Kris

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Biswapati
Level: Powered On

Re: Don't send email if the flow body is empty

Thanks for reply,

The connector is "Kusto - Run query and visualize results ". I have tried the expression @empty(body('Run_query_and_visualize_results')). But it's always return false whether the "Kusto - Run query and visualize results" return data or not. I have tried follwoing option that didn't work for me :

@contains(body('Run_query_and_visualize_results')?['body'], 'com.microsoft')
empty(item()?['appId'])
@and(empty(item()?['appId']), empty(item()?['standardDeviationRate']))
@and(empty(item()?['appId']), empty(item()?['standardDeviationRate']))
@empty(body('Run_query_and_visualize_results')?['body'])
@equals(body('Run_query_and_visualize_results')?['body'], '')
@equals(body('Run_query_and_visualize_results'), '')
@contains(body('Run_query_and_visualize_results'), 'com.microsoft')
@empty(body('Run_query_and_visualize_results'))
@not(empty(body('Run_query_and_visualize_results')['body']))
@contains(coalesce(body('Run_query_and_visualize_results')['body'], ''), 'com.microsoft')
@empty(coalesce(body('Run_query_and_visualize_results')['body'], ''))
Error-:
InvalidTemplate. Unable to process template language expressions for action 'Condition' at line '1' and column '2168': 'The template language expression 'not(empty(body('Run_query_and_visualize_results')['appId']))' cannot be evaluated because property 'appId' doesn't exist, available properties are 'attachmentName, attachmentContent, body'. Please see https://aka.ms/logicexpressions for usage details.'.
 
@not(empty(body('Run_query_and_visualize_results')['body']['appId']))
Error-:
InvalidTemplate. Unable to process template language expressions for action 'Condition' at line '1' and column '2168': 'The template language expression 'not(empty(body('Run_query_and_visualize_results')['body']['appId']))' cannot be evaluated because property 'appId' cannot be selected. Property selection is not supported on values of type 'String'. Please see https://aka.ms/logicexpressions for usage details.'.
 
Thanks
Biswapati
Biswapati
Level: Powered On

Re: Don't send email if the flow body is empty

Can anyone please help me on resolve this issue. Even I can change to Html table instead of Bar chart. Please let me know the solution for both Html Table & bar chart.

Biswapati
Level: Powered On

Re: Don't send email if the flow body is empty

Can anyone help me to resolve this issue. This issue is still open.

ccollins
Level: Powered On

Re: Don't send email if the flow body is empty

Did you ever find a solution to this? I'm having the same problem.

Biswapati
Level: Powered On

Re: Don't send email if the flow body is empty

Yes, Below expression work for me :

 

@empty(body('Run_query_and_list_results')?['value'])

ccollins
Level: Powered On

Re: Don't send email if the flow body is empty

I'm getting the following error: 

 

InvalidTemplate. Unable to process template language expressions for action 'Does_user_exist' at line '1' and column '2223': 'The template language expression 'empty(body('Search_for_users')?['value'])' cannot be evaluated because property 'value' cannot be selected. Array elements can only be selected using an integer index. Please see https://aka.ms/logicexpressions for usage details.'.

Biswapati
Level: Powered On

Re: Don't send email if the flow body is empty

Run the flow and see the output by cliking on the "Search for users" action. Replace the 'Value' with the item that you are getting inside the Body as below (For your reference). I have used  'empty(body('Search_for_users')?['value'])'  and working for me. If it's not working then I am just the beginner of the flow. You can post your question in the group. Someone ight help you.

 

Example:

 

Body
{
  "value": []
}
 

Helpful resources

Announcements
firstImage

New Ranks and Rank Icons in April

Read the announcement for more information!

firstImage

Better Together Contest Finalists Announced!

Congrats to the finalists of our ‘Better Together’-themed T-shirt design contest! Click for the top entries.

firstImage

New & Improved Power Automate Community Cookbook

We've updated and improved the layout and uploading format of the Power Automate Cookbook!

thirdimage

Power Automate Community User Group Member Badge

Fill out a quick form to claim your user group badge now!

sixthImage

Community Summit North America

The top training and networking event across the globe for Microsoft Business Applications

Top Solution Authors
Top Kudoed Authors
Users online (9,540)