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Power Platform Community / Forums / Copilot Studio - Calling Actions from Copilot S... / Power Automate - AI Bu...
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Answered

Power Automate - AI Builder (Prompt) Issue: Item.item/source

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Posted on by OK-12081121-0 23

Since ~2 days, the AI Builder – Execute prompt (Predict V2) action injects an extra parameter by itself and every run fails. This happens in new flows and existing ones; even the basic preconfigured prompts fail, so it’s not due to my custom mapping.

What gets added automatically

Field shown in the action as item.item/source, value:

{"consumptionSource":"PowerAutomate","partnerSource":"AIBuilder",
"consumptionSourceVersion":"Flow",
"partnerSourceVersion":"28214da3-87df-433c-bc09-0be2065c2f01",
"displayName":"Cold-Mail-Outreach-Flow"}

In the code view / request payload this becomes a top-level parameter item/source, which OData rejects.

Error

400 Bad Request (0x80048d19)
The parameter 'item/source' in the request payload is not a valid parameter for the operation 'Predict'.
 

Repro steps

  1. Add AI Builder – Execute prompt (Predict V2) to a flow.

  2. Map only the required inputs (no “source”/telemetry fields).

  3. Save and run.

  4. Open Code view → see item.item/source added automatically.

  5. Action fails with the error above.

Tried

  • Deleting the field (X) → it reappears on save/run.

  • Setting the field to null → flow doesnt accept it.

  • Rebuilding the action & creating a brand-new flow → same result.

Impact

All flows using Execute prompt (Predict V2) are currently blocked.


Categories:
Power Automate Flows
I have the same question (22)
  • Verified answer
    OK-12081121-0 Profile Picture
    OK-12081121-0 23 on at
    Power Automate - AI Builder (Prompt) Issue: Item.item/source
    I spoke with Microsoft Support about this. The only reliable solution was to switch to the classic design (turn off the modern design). After doing so, make sure to save the workflow: this step is crucial. Once saved, it should work; it did for me for the rest of the day. I’ll mark this as the correct answer if it’s still working tomorrow.
  • paLuke Profile Picture
    paLuke 12 on at
    Power Automate - AI Builder (Prompt) Issue: Item.item/source
    I experienced the same problem.
     
    As soon as I saved the flow in the Classic designer it started to work again and did not inject an extra item.item/source into the input.
     
    Run a prompt Input when saved in New designer - injects extra item.item/source
     
    "parameters": {
            "recordId": "",
            "item/requestv2/Document_20input/base64Encoded": "",
            "item": {
                "item/source": {
                    "consumptionSource": "",
                    "partnerSource": "",
                    "consumptionSourceVersion": "",
                    "partnerSourceVersion": "",
                    "displayName": ""
                }
            },
            "item/source": ""
    }
     
    Run a prompt Input when saved in Classic designer - has one item/source
     
    "parameters": {
            "recordId": "",
            "item/requestv2/Document_20input/base64Encoded": "",
            "item/source": ""
    }
  • VS-14081414-0 Profile Picture
    VS-14081414-0 8 on at
    Power Automate - AI Builder (Prompt) Issue: Item.item/source
    Hi,
     
    did you find a solution. I've got the same problem and I'm stuck with it.
     
    With kind regards.
     
    Vincent.

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