Power Platform Community Forum Thread Details

Hi there,

I'm calling a cloud flow called ReadCustomerList from a Copilot Studio agent. The cloud flow works great and is triggered as a standard API. I select the flow in Copilot Studio, it gives me the right inputs and outputs (see below):

The "List" variable which is just a JSON blob gets returned from the flow. When I run, everything seems to work fine but then I get the following error message:

Error Message: The parameter with name 'Messages' on flow 'ReadCustomerList' ('35f30234-7933-ed11-9db1-000d3a381ab5') evaluated to type 'TableDataType' , expected type 'TableDataType' Error Code: FlowActionBadRequest Conversation Id: a9294bf3-bad5-419b-a833-c8560382f80d Time (UTC): 2026-02-02T21:44:48.724Z

It's strange because it says it's expecting TableDataType and not getting a TableDataType.

I'm wondering why Copilot isn't picking this up as a table? Do I need to do some sort of formatting or parsing?

This is the JSON that gets returned:

{
"List": [
{
"Customer": "1992",
"Country": "GB",
"Name": "IDES UK",
"City": "London",
"PostalCode": "L3B 6H7",
"Street": "",
"Region": "GM"
},
{
"Customer": "3500",
"Country": "GB",
"Name": "Hever Industrial UK",
"City": "High Wycombe",
"PostalCode": "HP12 3TL",
"Street": "",
"Region": "HA"
},
{
"Customer": "301417",
"Country": "GB",
"Name": "UK Systems",
"City": "",
"PostalCode": "",
"Street": "",
"Region": ""
}
],
"Messages": [
{
"Message": "3 customer(s) found based on your search criteria."
}
]
}