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How to test a Power Automate with a http request trigger in Postman?

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Posted on by KLD

I created a Power Automate with a http request trigger. In this http request action I have this json body:

{
 "type": "object",
 "properties": {
 "SiteUrl": {
 "type": "string"
 },
 "ListTitle": {
 "type": "string"
 },
 "ListGUID": {
 "type": [
 "string",
 "null"
 ]
 },
 "ItemID": {
 "type": [
 "integer",
 "null"
 ]
 },
 "ClaimsUser": {
 "type": [
 "string",
 "null"
 ]
 },
 "FlowName": {
 "type": [
 "string",
 "null"
 ]
 }
 }
}

I would like to test in Postman and try to do a Post request with this body:

{
 "SiteUrl": "https://myCompany.sharepoint.com/sites/Test/",
 "ListTitle": "Documenten",
 "ItemID": 60,
 "ClaimsUser": "i:0#.f|membership|svc-spo-dms-hi@myCompany.com",
 "FlowName": "Bestandsbeheer Documenten",
 "ListGUID": "4d084425-ff5a-4aa6-9227-51c42d820cec"
}

I got this error: The input body for trigger 'manual' of type 'Request' did not match its schema definition. Error details: 'Invalid type. Expected Object but got String. What I am doing wrong?

Categories:

Building flows

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Expiscornovus 33,195 Most Valuable Professional on at

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Hi @KLD,

Just to double check. You are using the When a HTTP request is received trigger action, correct?

Can you also share a screenshot of your Postman setup, especially the body and the headers of your Postman request.

Btw, does your header of your Postman request include Content-Type:application/json?

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msalamonjl 51 on at

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I'm having the same issue. I followed this precisely but still got the error mentioned above: https://carldesouza.com/triggering-a-microsoft-flow-post-request-from-postman/

Has anyone solved this?

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Community Power Pla... on at

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Also encountered this issue.

Ensure the body is set to JSON not text

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CF2021 2 on at

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The issue should be the type passed. By default Text is selected. Change it to JSON. This is mentioned by Anonymous below as well and is the correct answer

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