SAP Message CRM_IC_AUI506 - &1 &2 &3&4 has been set as the main object

Diagnosis
You are using the agent inbox to process e-mails, business transactionsor cases. You have selected an inbox item and have chosen the Edit
or the Interact button.
The system has set the business object selected in the agent inbox asthe main object of your current activity in the IC WebClient.
This has the following consequences:
When you select an item in the inbox and choose the Link button,the item is linked to the main object.
When you select an item in the inbox and choose the Edit button,the item is linked to the main object.
When you choose End in the IC WebClient toolbar, your currentactivity in the IC WebClient is ended, and the main object is reset.

Note
Via the Display button you can display items in the agent inboxwithout setting them as the main object.