Getting invalid expression(s) in compose action while trying to access similar properties

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Posted on by MK-03110623-0

Using following expression to dynamically access the content from Parse JSON action into compose action:

body('Parse_JSON')?['productOfferingQualificationItem'][0]?['relatedContactInformation'][0]?['number']
This works fine but for the below expression the flow throws errorbody('Parse_JSON')?['productOfferingQualificationItem'][0]?['relatedContactInformation'][0]?['role']
 
Both the properties are in the same attribute

"relatedContactInformation": [

{

"emailAddress": "abc@buyer.com",

"name": "Don doe",

"number": "4556720166",

"role": "buyerContactInformation"

}
 
The flow works for one while fails when add another. What would be the underlying issue here?

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Chriddle 8,672 Super User 2026 Season 1 on at

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Show the error message ;)

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MK-03110623-0 6 on at

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In new designer it just gives this error:
The input parameter(s) of operation 'Compose' contains invalid expression(s). Fix invalid expression(s) for the input parameter(s) of operation 'Compose'.

In the classic designer it shows this kind of error below, I've checked it multiple times for syntax, as pasted in the post above, it seems correct.
Request to XRM API failed with error: 'Message: Flow client error returned with status code "BadRequest" and details "{"error":{"code":"TemplateValidationError","message":"The power flow's logic app flow template was invalid. Unable to parse template language expression 'type': expected token 'LeftParenthesis' and actual 'EndOfData'."}}". Code: 0x80060467 InnerError: '.

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abm abm 32,985 Most Valuable Professional on at

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Hi

This expression looks good to me

body('Parse_JSON')?['productOfferingQualificationItem'][0]?['relatedContactInformation'][0]?['role']

Is the role information always exists otherwise it fails.

Try the below expression if that role is optional.

body('Parse_JSON')?['productOfferingQualificationItem'][0]?['relatedContactInformation']?[0]?['role']

If you have the role value always then remove the existing expression and start adding a new one.

Thanks

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Chriddle 8,672 Super User 2026 Season 1 on at

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Can you show the Compose code? ("Peek code")

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