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Any suggestions on how to find the source of a Lightning error msg - "You can't access Lightning Experience"? 

 

Our assumption is that we have an automated process that is accessing a non-Lightning page and terminating Lightning, reverting us back to Classic.

 

We are a nonprofit (NPSP) Enterprise Org, and have completed the Lightning Experience Migration Assistant steps including an initially successful Preview. 

 

Check Readiness is clean for VisualForce

 

Lightning reverting to Classic after several minutes of successful navigation

 

For standard Admin profile, we've confirmed that Lightning Experience User is checked - and can successfully "Turn it On" and enable Lightning.  We can work in Lightning for several minutes, to up to 30 minutes, before it displays a msg (below) and reverts to Classic.

 

This also happens in the Preview, after successfully navigating for over 30 minutes, before it too responded with the following msg in a box in an otherwise empty screen:

 

You can't access Lightning Experience - The page you're trying to access is available from Lightning Experience or the mobile app only. Need help? Ask your Salesforce admin. [OK]

 

Thanks in advance for your coaching!
5 answers
  1. Feb 11, 2018, 8:57 AM
    Hi Jay,

     

    I would suggest to refer the debug logs for the user experiencing this error, it may help the troubleshooting get a good direction.

     

     
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