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troymill
Advocate I
Advocate I

Power Apps says JSON doesn't match its schema definition in Power Automate even though I used "Generate from sample"

I'm building a flow that takes in parameters from a Power App and uses them to generate a document. I have a button in my app that gets the necessary fields, puts them into a table together, converts that table to JSON, and then runs the flow with that JSON object.

 

In the flow, I'm using "Parse JSON", and I used the output from above as a sample to generate the schema.

 

The first picture below shows the code that I have attached to the button's OnSelect property and the error it's giving me. The second shows the schema that was generated in Power Automate. They seem to match, so what's the problem here? Or is there a better approach for what I'm trying to do? Thanks in advance!

 

json-to-flow.pngparse-json.jpg

5 REPLIES 5
abm
Super User
Super User

Hi @troymill 

 

Check the flow run history and check Parse_JSON_content value?



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eliotcole
Super User
Super User

Could it be as simple as reversing the Site / Email in the schema?

{
    "type": "object",
    "properties": {
        "Site": {
            "type": "string"
        },
        "Email": {
            "type": "string"
        }
    }
}

 

Additionally (and I'm still learning Power Apps), but could it be that the Power App is creating this JSON:

{
  "flowData": {
    "Email": "text",
    "Site": "text"
  }
}

 

Which would put an extra layer on your schema, thusly:

{
  "type": "object",
  "properties": {
    "flowData": {
      "type": "object",
      "properties": {
        "Email": {
          "type": "string"
        },
        "Site": {
          "type": "string"
        }
      }
    }
  }
}

 

I don't *think* the order matters for the schema, but, obviously, if it does, then it needs to be switched for my second example, @troymill .

These runs aren't showing up in my run history. I guess this error registers before it even tries to run the flow.

Unfortunately, neither of these worked.

 

For reference, to get the sample for generating the schema, I made a label in Power Apps that contained the value of jsonFlowData.

 

That value was: {"Email":"","Site":""}

Yeah, I'd initially wondered (and deleted) about the Power Apps end of things, and whether you should be putting quotes / speech marks around the field definitions.

 

Well, sorry about that, mate. Good luck!

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