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When a new email arrives (V3) initialize variable string value from email subject.

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Posted on by Mrudd

With the 'When a new email arrives (V2)' for Outlook.com I can then initialize a variable with a simple expression such as:

concat(triggerBody()?['Subject'],triggerBody()?['From'])

However I can't do this with "When a new email arrives (V3)' for Office 365 Outlook. It just returns null. Is it broken or do I have to use some other method?

How can I get the 'subject' into a string variable from this trigger?

Thanks

-Mike

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Ellis Karim 11,681 Super User 2025 Season 2 on at

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Try the following, which is based on dynamic content:
concat(triggerOutputs()?['body/subject'],triggerOutputs()?['body/from'])

Ellis

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Mrudd 20 on at

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Thanks for the suggestion. I tried that, but it still returned blank. I know we recently enabled MFA, could that be causing any kind of an issue? I have already gone through and reauthorized my connections though.

Thanks
-Mike

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Mrudd 20 on at

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Also in the attempts. I tried to just select the dynamic content. However PowerAutomate automatically wraps that in an 'Apply to each' object. Then the initialize variable doesn't work.

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Mrudd 20 on at

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For anyone searching, I found a way to get this. I had to Initialize Variable and just make the value something that worked first. eg: triggerOutputs()?['Body']

Then below in an "apply to each" I could then use 'Set Variable' to select the dynamic content 'Subject' or any concat/substring expression.

-Mike

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