Error Power Automate Flow

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Posted on by CU27030508-0

Hello Power Users

Unable to process template language expressions in action 'Parse_JSON' inputs at line '0' and column '0': 'Required property 'content' expects a value but got null. Path ''.'.

Even thought I had used "null",giving me the same error . Please help me on this issue

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DJ_Jamba 2,837 Moderator on at

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The problem is that you've initialised the FIleName variable, but it's empty when you pass that variable to your Parse JSON action.
Additionally, you need to pass a variable of type Object to the Parse JSON function and not a variable of type String.

The object to pass to the Parse JSON action needs to look something like this

{ "properties": { "scheduled_reports[queue_desc]": "A string" } }

OR

{ "properties": { "scheduled_reports[queue_desc]": variables('FileName') } }

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CU27030508-0 2 on at

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Hello @DJ_Jamba,

Thank You for your reply . I am a newbee to this Power Automate and trying to learn rectify the issue . below is my flow . Can you please help me in detail what I should be doing here ?

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w.p 8,345 Super User 2026 Season 1 on at

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Have you tried adding a condition to check if the FileName is empty?

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developerAJ 4,763 on at

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I would recommend avoiding the use of ParseJSON. You can use it initially to select the values, but after that, replace the ParseJSON body with the actual values to prevent such errors.

In this case, there might be a required property in the JSON. Try removing this property from required property array in parse json to resolve the issue.

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John39 3 on at

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I have also encountered this problem when using Parse JSON.

I solved it by removing the type property entirely so that it doesn't return an error if it is null.

"properties": { "scheduled_reports[queue_desc]": {} }

However it may not be the best solution. If your variable is just a text string then there would be no need to use Parse JSON unless you are trying to extract a filename from an unmapped object, if that is what you are trying then the Content field of the Parse JSON action should be the JSON object and not the variable unless the variable is initialised with the correct object in its Value field. Did you use the actual JSON object to generate that schema?

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