How to create a custom program for purchaing groups creation

Hi Experts,

We are getting high volume of CRS for the creation of purchasing groups.Every time we need to create in DEV then transport to  QAS and then production.We are reuired to send many days in these CRS.We are planning to develop a custom program for this.Just users have to place the file with plant,approval amount limit purchasing group.We want to give this responsibility to users.Kindly anyone advise how to achive this?

Thanks in advance.