Hi,
I share my configuration and the steps , the issue follow:
I dond found application id specified as MANAGER_MSS_INBOX_3 or MANAGER_MSS_INBOX_2
If you open this application configuration from SE80 you will find that there is a component configuration defined for POWL component HRMSS_CC_POWL_INBOX_2. In this configuration there is application id specified as MANAGER_MSS_INBOX_3 or MANAGER_MSS_INBOX_2
Regards