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Unable to save 3471ee11-a65e-40d9-b54d-93129189f09f" We've had several reports of this. You will get this message when trying to register an LTI 1.3 tool on a Learn system when there is already an LTI tool on the same Learn system with the same domain.


One example: You register MyCoolRestApp on with the domain: Now you register another, MyCoolLTI13App on on with the same domain: You go to a Learn system and register MyCoolRestApp as an LTI 1.3 tool provider, then you try to register MyCoolLTI13App as an LTI 1.3 tool provider. You will see the "Unable to save..." message because you can not register two LTI apps on the same Learn system that have the same domain.

   If you see the message "Field must be in the format of an https URL" when registering an App on with multiple Tool Redirect URLs, remove the space.

We often hear about this message "The Tool Provider has been disabled by the System Administrator"  The usual cause is that one of the 3 LTI switches is disabled. There are 3 places you need to enable LTI: (1) at the tool level, (2) at the course/organization level, and (3) at the LTI Global Properties level. Screenshots follow.


Administrator Panel -> Tools & Utilities section -> Tools


In a Course/Organization, Start at the Left Nav Menu


Administrator Panel -> Integrations section -> LTI Tool Providers -> Manage Global Properties