https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733807#M8663 I'm unfamiliar with the tool you are using, but try entering the values into the Body tab instead of the Query tab.<BR /><BR />Mark Fri, 03 Jan 2020 10:06:25 GMT Mark_Byrne 2020-01-03T10:06:25Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733804#M8660 <P>I tried the following method to generate OAuth 2 token for API client (with reference to&nbsp;<A href="https://docs.appdynamics.com/display/PRO45/API+Clients#APIClients-using-the-access-token" target="_blank" rel="nofollow noopener noreferrer">https://docs.appdynamics.com/display/PRO45/API+Clients#APIClients-using-the-access-token</A> ),</P><P><SPAN><A href="https://saas.hostname.com/controller/api/oauth/access_token?grant_type=client_credentials&amp;client_id=MahiTest&amp;client_secret=fa29219b-757f-4397-bf96-489476199fb4" target="_blank" rel="nofollow noopener noreferrer">https://saas.hostname.com/controller/api/oauth/access_token?grant_type=client_credentials&amp;client_id=MahiTest&amp;client_secret=fa29219b-757f-4397-bf96-489476199fb4</A></SPAN></P><P><SPAN>Client Id: is Api client name</SPAN></P><P><SPAN>client_secret : is the Secret key for the client.</SPAN></P><P><SPAN>I am getting the response like,</SPAN></P><P>"Grant type value not specified."</P><P>Suggest me if a way to get the token.</P> Fri, 03 Jan 2020 07:24:02 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733804#M8660 Krishna_Sankar_ 2020-01-03T07:24:02Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733805#M8661 Hi there,<BR /><BR />By the looks of the URL you have posted it looks like you are trying to obtain the token by a GET method. I'm not sure this will work, as the error message suggests that the server is looking for a POST parameter.<BR /><BR />Try making a POST call like the one in the documentation.<BR /><BR />Mark Fri, 03 Jan 2020 09:23:08 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733805#M8661 Mark_Byrne 2020-01-03T09:23:08Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733806#M8662 <P>I have tested in post only.</P><P><SPAN class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="oautherror.PNG" style="width: 946px;"><span class="lia-inline-image-display-wrapper" image-alt="image.png"><img src="https://community.splunk.com/t5/image/serverpage/image-id/35246i177805A65CA608FA/image-size/large?v=v2&amp;px=999" role="button" title="image.png" alt="image.png" /></span></SPAN></P> Fri, 03 Jan 2020 09:53:17 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733806#M8662 Krishna_Sankar_ 2020-01-03T09:53:17Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733807#M8663 I'm unfamiliar with the tool you are using, but try entering the values into the Body tab instead of the Query tab.<BR /><BR />Mark Fri, 03 Jan 2020 10:06:25 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733807#M8663 Mark_Byrne 2020-01-03T10:06:25Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733808#M8664 <P>Leave the Postman as REST Client,</P><P>I am getting the 401 Unauthorized and response is empty.</P><P>client_id: <A href="mailto:APICLIENT@Username" target="_blank" rel="nofollow noopener noreferrer">APICLIENT@Username</A> is it right ?</P> Sat, 04 Jan 2020 17:54:56 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733808#M8664 Krishna_Sankar_ 2020-01-04T17:54:56Z https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733809#M8665 <P>Hi there,</P><P>The example has</P><PRE>client_id=&lt;userName&gt;@&lt;accountName&gt;</PRE><P>Try using that.</P><P>Mark</P> Sun, 05 Jan 2020 19:57:04 GMT https://community.splunk.com/t5/Splunk-AppDynamics/Not-able-to-generate-OAuth-2-0-Token-for-Appdynamics-REST-API/m-p/733809#M8665 Mark_Byrne 2020-01-05T19:57:04Z