Handling similar developments for different rollouts
We are in process of going for different rollouts. Were in we have identified certain developments which would be common to other Regions but with some modifications .
As there is just difference in days between different rollouts , we have to start working on those identified developments -which are in common .
Can anyone please tell me how can i differentiate the code from one region to other . Say i am using a same enhancement for all the rollouts , is there any standard way to restrict codes to that particular region/rollout .
Or can we do it using a Function Module , if so please help.
Valid replies which meets my requirment will be awarded!!