Having tenant metadata in Oracle configured using a TNS name specified in tnsnames.ora, you cannot login into the Mobile App getting "Invalid User" error.
Having data in Oracle configured using a TNS name specified in tnsnames.ora, you get error while trying to load the Mobile App assigned to you.
Diagnosis
On the server side you can check the event viewer and you will find an error related to a .NET application. In the details you will find an oracle error like:
ORA-12154: TNS:could not resolve the connect identifier specified
That errors is related to the Oracle .NET managed driver that is not capabile or reading the settings in the Windows registry. Please refer to:
a short remark. I have followed your steps and modified the web.config as stated above. After the change the mobile endpoint was not accessible anymore: Error500
The reason: the oracle.manageddataaccess.client has been already defined.
After removing the complete <configSections>-part the mobile endpoint was accessible and I was able to login even when using Oracle
Now I do not get any errors in the event viewer, the mobile endpoints still works and I am able to login and startup the mobile app.
Cheers
Fritz
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