Error 503: Service is not available when launching the CCS_Web home page
Error 503: Service is not available
Application Event :
The identity of application pool CCS_WebAppPool is invalid. The user name or password that is specified for the identity may be incorrect, or the user may not have batch logon rights. If the identity is not corrected, the application pool will be disabled when the application pool receives its first request. If batch logon rights are causing the problem, the identity in the IIS configuration store must be changed after rights have been granted before Windows Process Activation Service (WAS) can retry the logon. If the identity remains invalid after the first request for the application pool is processed, the application pool will be disabled. The data field contains the error number.
Incorrect username or password configured for CCS_Web application pool.
Check the identity of the CCS_Web Application pool. To reset the identity, follow these steps: