Using SharePoint Workflow Call WebService on External List RRS feed

  • Question

  • Good day looking for some help. 

    I have a SP Document Lib , with a workflow attached.  The workflow has an AppStep that calls Https Webservice to get data from external List. I keep getting a Forbidden result code when I execute the call HTTP Webservice. I have and Idea that is might be linked to my headers or it not allowed.

    I have done the usually workflow with elevated permissions setup, but no luck. 

    Obviously works fine if I point it to a normal sharepoint list 

    Thanks for the help

    Saturday, April 22, 2017 4:53 PM

All replies

  • Hi xy15973,

    Please find here the reference URL as below,

    Hope this help.

    Vote - if you find this helpful

    Marked as Answer - if you see this reply being an answer to the question of the thread


    Amjad Khan


    Saturday, April 22, 2017 5:35 PM
  • Thanks for your response ... I had a look and added both the cookie (rtFa and FedAuth) and Authorization (Set to blank) values. Still no joy ... There must be a MS limitation in accessing external list via WF Webservice. 
    Monday, April 24, 2017 3:06 PM
  • Hi,

    Please make sure get the data from external list using REST API works in SharePoint UI(jQuery Ajax with REST API in a content editor web part).

    Did you follow the steps as the article below?

    Try to use the following XML code in Permissions Request XML.

    	<AppPermissionRequest Scope="http://sharepoint/content/sitecollection/web" Right="Write"/>
    	<AppPermissionRequest Scope="http://sharepoint/bcs/connection" Right="Read" />

    Or as a workaround, we can create a custom web service to get the data from external list, then call the web service from the workflow.

    Best Regards,


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    Wednesday, April 26, 2017 3:27 AM
  • Thanks Dennis 

    Yes i have worked through the article , but no joy. I will add your XML and see if this does the trick. What i did find is when I place a WebService call to a custom list ( normal Sp list) within the App Step, I also get the forbidden error, but when I moved it outside of the App step it worked fine. 

    O was using a MS Flow to check if there was a new item added and then update a internal list ,but it would seem that the external list works in a funny what. My flow just ran continually as if it was receiving new item notifications all the time... so that killed that idea 


    Wednesday, April 26, 2017 7:30 AM