Error: A required parameter (Oath_Consumer_Key) was missing

Error: A required parameter (Oath_Consumer_Key) was missing


If you see the error message below, A required parameter (Oath_Consumer_Key) was missing, when opening a Learning Science resource it could be due to one of the following issues:



Issue 1: The LTI URL for the Learning Science activity has not been embedded correctly.

If you click on an LTI URL to open it directly in your browser it will not let you access the resource, instead you will be presented with an error message on the browser page like the one above. 

Fix: Embed the activity following the correct integration guide for your VLE/LMS. You can find all of the integration guides here.

Issue 2: The Consumer Key has not been set up correctly.


If the Learning Science LTI tool has been configured on your VLE/LMS
Fix: You will need to get in touch with your VLE/LMS administrator who can check that the Consumer Key has been set up correctly. 

If the Learning Science LTI tool has not been configured on your VLE/LMS
Fix: You will need to edit the settings on the Learning Science resource that is causing the error message and check that the Consumer key has been entered correctly. 

If you need further help, please let our support team know by using the "Submit a ticket" form at the bottom of this page or contact support@learnsci.com


    • Related Articles

    • What is my Consumer Key?

      The LTI Consumer Key (and Shared Secret) authorise and authenticate your Learning Science resources (LTI tool links) on your VLE/LMS. You will have been assigned a Consumer Key for your department, school or institution. Depending on your VLE/LMS, ...

    • Error: Invalid signature

      If you see an error message containing the words "invalid signature" when opening a Learning Science resource it could be caused by one of the following issues: Issue 1: An incorrect LTI URL has been used. Fix: Please check the LTI URL you have added ...

    • Brightspace: How to add Learning Science as a new LTI provider (Admin)

      These instructions are intended for the Brightspace administrator at your institution. The LearnSci resources fully integrate with your Brightspace platform. All of your resources are hosted, maintained and updated by Learning Science and are added ...

    • Moodle: How to configure the Learning Science LTI tool (Admin)

      The LearnSci LabSims, Smart Worksheets and other Graded Activities fully integrate with your Moodle platform. All of your resources are hosted, maintained and updated by Learning Science and are added to Moodle using the learning tools ...

    • What is my Shared Secret?

      The LTI Shared Secret (and Consumer Key) authorise and authenticate your Learning Science resources (LTI tool links) on your VLE/LMS. Depending on your VLE/LMS, the Shared Secret may have a different name. For example, on Blackboard it is referred to ...