refactoring the campaign st/end method
refactoring the campaign st/end method

unicef/rhizome,unicef/rhizome,unicef/polio,unicef/polio,unicef/rhizome,unicef/rhizome,SeedScientific/polio,unicef/polio,SeedScientific/polio,SeedScientific/polio,SeedScientific/polio,SeedScientific/polio,unicef/polio