Personally, I think I would opt for the SAP choice.
i also in search for the course n not getting where to switch…..SAP abap or IBM mainframe
It’s hard to go past SAP. Lots of work out there, and it’s a growing customer base.
IBM Mainframe work is also out there, but in my opinion not as much. Although there is a bit of a Mainframe skills shortage, there’s also a shortage of new Mainframe sites. What’s more, most Mainframe jobs are for people with a few years experience – it usually takes this to be any good.
Of course SAP can run on the Mainframe – perhaps you could choose both?