Hi Sagarika
Again, what I am really confused about (and also concerned) is that you are taking charge/control of her career. Regardless if she was posting under your account or not you are here asking for advise and not her. Again, it is great that you are being a good brother and supporting her but she's going to have a hard time.
I'll be honest (no idea if you work in SAP area and/or have read other posts in this forum): SAP is cut-throat area to get a step through the door. You (in this case, your sister) have got to want this really badly and be prepared to work hard no matter which module or technical area you enter.
My concern for your sister is that her not being here sends a message that she is not here asking the question herself she may not be in a position to succeed on getting a job post education (or even certification). She cannot have her brother apply for jobs and turn up to job interview for her. As far as creating her own user id, if she is going to enter the world of SAP then eventually she'll be in SCN asking technical questions and might actually want to build her own reputation.
Why should "that should be done by me only" when this is her career?
You have caused no inconvenience in being here and again, wonderful you are looking after a family member. But I do think you could be more helpful in guiding her through this process and explaining SCN/showing her/helping her but make her take the first steps. She will have more chance of success through guidance.
As far as job opportunity goes - again search SCN and you will see it - but getting your foot is the door is one the hardest. If she has a job offer and is being paid to learn EP then go for it. It still has use but she might want to diversify skills (never stop learning to remain current in the market).
Regards
Colleen