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Compose Action output and input is blank

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Posted on by TB-17121644-0

My flow begins with > When a new email arrives in a shared mailbox (V2)> My compose action is:

if(
contains(coalesce(triggerOutputs()?['headers']?['subject'], ''), '-'),
trim(split(split(coalesce(triggerOutputs()?['headers']?['subject'], ''), '-')[0], '"')[1]),
''
)
but the input and output of the compose action is blank. Any idea why? Previously I used

split(coalesce(triggerOutputs()?['headers']?['subject'], ''), ' ')[0] and it worked fine, but I'm trying to use a dynamic code. 

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David_MA 14,614 Super User 2026 Season 1 on at

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If your input is empty, then your expression is doing what you told it to do. According to how I read your expression, it extracts and trims the text between the first hyphen and the first double quote in the ‘subject’ header, if a hyphen is present. If no hyphen is found, it returns an empty string. If nothing is going into your compose action, then your coalesce statement is returns '' which would not contain a hyphen, and thus the output is blank.

If your old expression worked, why did you change it as I don't understand what you mean by "I am trying to use a dynamic code."

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TB-17121644-0 2 on at

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Yes, that's almost what I want it to do. Extract and trim the text between the first hyphen and the first double quote in the ‘subject’ header. That's the thing, there is a hyphen present each time and it's not extracting anything in the compose action. I changed the code because it didn't work in this specific flow, it just worked in a previous one. I only provided that one in hopes of providing a bigger picture on what I'm trying to accomplish.

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