Assigning licenses to new employees using MS Graph API in Power Automate

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Posted on by Bambula

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Hi everyone,

I am trying to assign licenses to new employees using the Microsoft Graph API in Power Automate. I can retrieve licenses using GET, but I cannot assign them to new employees using POST or PATCH. I get the error "Method Not Allowed."

I have tried the following:

I have tried using the POST and PATCH methods to assign licenses to new employees.
I am using a tenant administrator account.
I have enabled the Microsoft Graph API for my tenant.
I have granted the necessary permissions to the Power Automate flow.

{
 "uri": "https://graph.microsoft.com/v1.0/users/mkolaric@cizici.onmicrosoft.com/assignedLicenses",
 "method": "POST",
 "headers": {
 "Content-type": "application/json"
 },
 "authentication": {
 "authority": "",
 "tenant": "02447283-2aae-4f75-9b89-ce366e9782e9",
 "audience": "https://graph.microsoft.com",
 "clientId": "62dbfa9c-dd6d-4d75-8c53-06fc754c3f03",
 "secret": "*sanitized*",
 "type": "ActiveDirectoryOAuth"
 },
 "body": {
 "value": [
 {
 "addLicenses": [
 {
 "disabledPlans": [],
 "skuId": "5b631642-bd26-49fe-bd20-1daaa972ef80"
 },
 {
 "disabledPlans": [],
 "skuId": "c42b9cae-ea4f-4ab7-9717-81576235ccac"
 }
 ],
 "removeLicenses": []
 }
 ]
 }
}

{
 "error": {
 "code": "Request_BadRequest",
 "message": "Specified HTTP method is not allowed for the request target.",
 "innerError": {
 "date": "2024-03-19T08:42:48",
 "request-id": "f1b1c2cc-f83b-4a91-b4bc-88352d61bb50",
 "client-request-id": "f1b1c2cc-f83b-4a91-b4bc-88352d61bb50"
 }
 }
}

Has anyone else experienced this issue? How can I assign licenses to new employees using the Microsoft Graph API in Power Automate?

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Expiscornovus 32,859 Most Valuable Professional on at

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Re: Assigning licenses to new employees using MS Graph API in Power Automate

Hi @Bambula,

It looks like your Authority field in the Authentication settings is empty. Can you add https://login.microsoftonline.com in that field?

Below is an example which should work (assuming you have assigned the correct Graph API permissions to your app registration in Entra Id, User.ReadWrite.All or Directory.ReadWrite.All).

In this example I am assigning the Microsoft Power Automate Free (f30db892-07e9-47e9-837c-80727f46fd3d) and Microsoft Power Apps Plan 2 Trial (dcb1a3ae-b33f-4487-846a-a640262fadf4) licenses btw.

{ "addLicenses": [ { "disabledPlans": [], "skuId": "f30db892-07e9-47e9-837c-80727f46fd3d" }, { "disabledPlans": [], "skuId": "dcb1a3ae-b33f-4487-846a-a640262fadf4" } ], "removeLicenses": [] }

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Bambula 169 on at

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Re: Assigning licenses to new employees using MS Graph API in Power Automate

Hi, @Expiscornovus

its works . thanks .

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Lombahdo 2 on at

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Re: Assigning licenses to new employees using MS Graph API in Power Automate

Hi @Expiscornovus ,

I also am trying to set this up, and I have it setup exactly to the specs provided but I am still getting HTTP method is not allowed for requested target.

Raw Input:
{ "uri": "https://graph.microsoft.com/v1.0/users/67a9cbf3-d55b-47b3-b0d2-be1ba01f683d/assignedLicenses", "method": "POST", "authentication": { "authority": "https://login.microsoftonline.com", "tenant": "f28a0d28-f54d-436c-98ba-88837197506d", "audience": "https://graph.microsoft.com", "clientId": "c58120ab-9fc8-4419-b284-e9ab168d9bf1", "secret": "*sanitized*", "type": "ActiveDirectoryOAuth" }, "body": { "addLicenses": [ { "disabledPlans": [], "skuId": "f30db892-07e9-47e9-837c-80727f46fd3d" }, { "disabledPlans": [], "skuId": "" } ], "removeLicenses": [] } }

Raw Output:
{ "statusCode": 405, "headers": { "Cache-Control": "no-cache", "Transfer-Encoding": "chunked", "Vary": "Accept-Encoding", "Strict-Transport-Security": "max-age=31536000", "request-id": "fe8722cd-c0ab-462b-aa01-4271924efb28", "client-request-id": "fe8722cd-c0ab-462b-aa01-4271924efb28", "x-ms-ags-diagnostic": "{\"ServerInfo\":{\"DataCenter\":\"West US\",\"Slice\":\"E\",\"Ring\":\"4\",\"ScaleUnit\":\"001\",\"RoleInstance\":\"BY1PEPF00003AA0\"}}", "x-ms-resource-unit": "1", "Date": "Thu, 09 May 2024 20:25:32 GMT", "Content-Type": "application/json", "Content-Length": "267" }, "body": { "error": { "code": "Request_BadRequest", "message": "Specified HTTP method is not allowed for the request target.", "innerError": { "date": "2024-05-09T20:25:33", "request-id": "fe8722cd-c0ab-462b-aa01-4271924efb28", "client-request-id": "fe8722cd-c0ab-462b-aa01-4271924efb28" } } } }

I have given my app API delegate access for Directory.ReadWrite.All and User.ReadWrite.All.

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Expiscornovus 32,859 Most Valuable Professional on at

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Re: Assigning licenses to new employees using MS Graph API in Power Automate

Hi @Lombahdo,

I see you tried adding an empty skuId, can you remove that part of your Body payload and try again to see if that makes a difference?

Change this:

{ "addLicenses": [ { "disabledPlans": [], "skuId": "f30db892-07e9-47e9-837c-80727f46fd3d" }, { "disabledPlans": [], "skuId": "" } ], "removeLicenses": [] }

To this:

{ "addLicenses": [ { "disabledPlans": [], "skuId": "f30db892-07e9-47e9-837c-80727f46fd3d" } ], "removeLicenses": [] }

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