Hi Ramesh,
- Is your number of split is fixed? that means always three or five number of child messages?? then you can do as per this blogDynamic File Name in Multimapping - Standard Solution
- If you want to do in two interfaces approach then you can do as per this blogMulti-mapping with Dynamic Configuration - SOAP loopback approach
- If you want to do custom adapter module then use this blogA new approach: Multi-mapping Dynamic Configuration using a generic custom module
Regards,
Praveen.