In the early days of configuring in Siebel, if a user wanted a confirmation or warning message before proceeding, it would require Browser Script to implement and most Siebel configurators would try to discourage the requirement on purely technical grounds. And to be fair, an application littered with popup warnings may not be a great idea on functional grounds either, but there are probably good reasons to implement a warning message on occasion and it would be nice if it could be done in a way that does not have technical repercussions. So here you go.
On a BC, configure a 'Named Method' user property with value:
"YourMethodName", "INVOKESVC", "FDNS IDENT Encounter", "LS Pharma Signature UI Service", "ShowConfirmDialog", "'Cancel Method Name'", "YourCancelMethodName", "'OK Method Name'", "YourOKMethodName", "'Confirm Text'", "'Are you sure you want to Proceed or some other message?'"
The method 'YourMethodName' would be invoked according to your requirements. In a simple case, a custom action button on an applet could invoke this method but it could really be invoked anywhere.
The methods 'YourOKMethodName' and 'YourCancelMethodName' need to be callable methods, either that you also configured as additional Named Methods, or vanilla methods (or scripted ones defined in PreInvoke but that would sort of defeat the point).
When 'YourMethodName' is invoked, a popup message containing the message parameter is shown with an Ok and Cancel button. Clicking either button calls the methods defined. Enjoy
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