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Extract comment from approval request

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Hello, I am currently creating a flow that has two approvals requests, where the second one uses the comments submitted in the first approval request. My flow works fine if a comment is submitted, but fails if there is no comment as the array variable becomes "null". Is there a way to mitigate this?

Thank you!

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Building flows

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rzaneti 4,262 Super User 2025 Season 2 on at

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Hi @Anonymous ,

Try this expression: if(empty(variables('response')?['comment']), '', variables('response')?['comment']), replacing the red text for the dynamic content of your comment.

It will append an empty text to your array when there is no comment in the approval. You can also change the empty for any other "default value" when there is no comment in the approval (for doing that, just change the second argument of the expression).

Let me know if it works for you or if you need any additional help!

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ManishSolanki 15,091 Super User 2025 Season 2 on at

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Hi @Anonymous

Pls check for null value using "Condition" action. If value is not null, then append the comments in the array variable as show below:

If this helps & solves your problem, please remember to give a 👍 and accept my solution as it will help others in the future.

Thanks

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Community Power Pla... on at

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Thank you, this is exactly what I was looking for!

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