Question:

Is it possible to change the message in the confirmation pop-up in Events Management after clicking a configured button?

Answer:

Yes. There are two ways of changing the message. This can be done through the following:

• Event Action object record
• Veeva Messages

Through the Event Action object record

1. The Confirmation_Message_vod field needs to be on the Event Action object page layout. 
2. EM_Event_Action_vod object's New and Edit button needs to be overridden with the Visualforce page EM_Event_Action_Edit_vod.
3. End-users need at least read access to the Confirmation_Message_vod field.

When creating a new Event Action, the Confirmation_Message_vod field needs to have an option to create a new Veeva Message or select a Veeva Message. This allows the administrator to create or add their custom message.

Through a Veeva Message

1. The administrator needs to go to the GENERAL_CONFIRMATION Veeva Message.
2. Add the custom text in the Text field.

Note: If the Confirmation_Message_vod field on the EM_Event_Action_vod object is not populated, a default message of  “Are you sure?” automatically displays. This default text is controlled by the GENERAL_CONFIRMATION Veeva Message.

Related Documentation:

CRM Help Documentation: Defining Event Flows