Hi Pushpalatha
I think you should be able to achieve this using the standard mapping function DateTrans. Just need to enter a format that conforms to the format allowed in SimpleDateFormat. T is not one of the allowed characters to need to be encapsulated in single quote 'T'.
Input format: yyyy-MM-dd'T'HH:mm:ssZ
Output format: yyyyMMddHHmmss
Rgds
Eng Swee