I have a custom list that I am trying to get contents from a designer workflow. I am testing the link on the browser, but the list does not show up and instead throws "page not found" error when I try to access it using the _vti_bin url format:


However if I use the _api/web url format then it shows up:


What could be causing this problem? There is a another very simple test list that I created and it is pulling up through both urls fine. Why is this inconsistency?


There is no inconsistency. There might be a space somewhere that is breaking your HTTP request. Can you make sure that the ListName bit has no spaces in it? If you are using the Workflow Context: List Name, then this probably has spaces in it.

If you have a list called "My List" this is how your calls should look like:

  • MySite/_api/web/lists/GetByTitle('My List')
  • MySite/_vti_bin/ListData.svc/MyList

You can see that the second version has no space in the list title.

NOTE that you can use the Fiddler or Postman (a web browser like Google Chrome is good too) to access and test those URLs before you use them in workflows. I actually highly recommend you test your calls to the SharePoint RESTful web services using one of these tools.

  • wow! just wow! Working now when I dropped the space. I was encoding it with %20 for no reason. I didn't know it removes the spaces. Thank you very much! – Aamir Jun 13 '16 at 23:33
  • Tip: Don't learn/use (oldskool) SOAP unless you really have to, Stick with REST and your skills will be way more future proof. – Danny '365CSI' Engelman Jun 14 '16 at 9:50

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