If you are using the Microsoft Dynamics CRM Online Web Client on a PC and selected “Keep me signed in” during login – your login will be expired after 24 hours. In which case the login prompt will appear again:
Here is a setup to allow you to keep signed in longer: Install the Microsoft Online Services Sign-In Assistant on your PC. Note: This is the same component that is installed if you setup the Microsoft CRM for Outlook Client.
Also keep in mind that if you are login to the same Web Client session for more than 8 hours without any action – it will log you out:
“Microsoft Dynamics CRM keeps you signed in for 8 hours. When you’ve been signed in for 7 hours and 40 minutes, a message will appear warning that your session is about to expire, and you then have 20 minutes to respond. Click or tap OK, sign in again, and then click the back button on your browser to return to the area of CRM in which you were working. You can’t change the amount of time you’re signed in.”
Contact me if you are looking for some Microsoft CRM help.