A method for facilitating creating one or more calendar entries in one or more client devices is provided. The method includes receiving an iTIP (iCalendar Transport-Independent Interoperability Protocol) message from a first client device. The method further includes generating an iMIP (iCalendar Message-Based Interoperability Protocol) message using the iTIP message. The method also includes providing at least one of a copy of the iTIP message and a copy of the iMIP message to a least one of the second client device and a second communication server device connected to the second client device for enabling the second calendar application to generate a calendar entry in the second client device. The method also includes determining whether one of a first action and a second action is to be taken. The method further includes performing one of said first action and said second action based on said determining.