I'm having this issue as well, seems like a lot of hassle could be saved by adding these instructions to the KB or setup steps or else maybe just post the solution here so we can access it without waiting for a DM. But if you insist on a DM, send away.
In case anyone else runs into this issue, this should have been put into the documentation but since it isn't here is the fix I received from support, a quick google search shows these IDs are not unique so they should work for anyone else having this problem:
2) Click Main Menu (the Hamburger Button on the left side) > Security > API Controls > Manage Third-Party App Access > Configure an OAuth app > OAuth App Name or Client ID