While working with CRM sometimes we get following exception screen with this message, which means there is some exception or issue on this operation.
An error has occurred
Try this action again. If the problem continues, check the Microsoft Dynamics CRM Community for solution or contact your organisation’s Microsoft Dynamics CRM Administrator. Finally you can contact Microsoft Support.
Following methods will help you crack down the real cause of this exception or error.
Method 1: Check the Event Log
Log in to CRM and reproduce the error
Go to CRM Application server -> Run – > Type eventvwr
And check application event log and find the relevant log and this will have actual exception details regarding this problem.
Method 2: Enable Development Errors on CRM Web site
On the Microsoft CRM Web server, navigate to \ (typically C:\Inetpub\wwwroot\ or C:\Program Files\Microsoft Dynamics CRM\CRMWeb)
Open the Web.config file.
Look for the DevErrors key, and change its value to On.
Save the Web.config file.
Login to CRM and reproduce error and you will screen which will give actual error (as shown below)
Method 3: Enable Tracing on CRM Server
Download CRM diagnostic tool
Run this tool on CRM Application server and enable the tracing (alternatively you can enable trace as mentioned in this kb article http://support.microsoft.com/kb/907490)
Login to CRM and reproduce error
Disabled the tracing
Go to tracing folder and open log file and locate the exception related to your operation.
Of course after finding actual cause of the exception solution will really different for each exception but above troubleshooting method will help you get in to right direction to fix any dynamic CRM issue.
Hope this helps…