Can someone continue her education in Germany if the first university degree is not recognized? My sister is living in Saudi Arabia in a city that has very few limited education options for her. She has to stay there for certain circumstances and she can't leave for a different country. She has now been enrolled in an architecture program at a private University there for a year so far. Yesterday, she found out that her degree is only recognized throughout the middle east and not world-wide and we don't know why. So, her university is only recognized in Saudi Arabia and other middle-eastern countries. 

I live in Germany and once I start working, I can afford to sponsor her and bring her here. She has the dream of continuing her education here in Germany. Now the problem is that we don't know what to do in that case at all.

I recall when I got my master admission in Germany, that they told me that although they didn't find my home university in their universities catalogue, yet the admission commission decided to give me the admission because I had good grades and good recommendation letters.

My question is:

Considering her situation, can she still continue her education in Germany after finishing her degree in Saudi Arabia?

Even if she has to re-do some courses. We are wondering if there is a possibility to get an admission from a German university regardless if they ask to redo a lot of courses or not,  we just want to know that there is a hope for her to continue her education in Germany.
If her high school degree is not recognized, then there is the possibility to apply to a Studienkolleg. They generally offer one- or two-year programs that teach German and enough other subjects to be accepted as an Abitur or Fachabitur. Then she can start a bachelor's program. Most universities have a quota for taking in students from foreign countries, this is generally 5 % of the places to study. But enrollments are down in Germany at the moment, so there are good chances of getting a position. Check the enrollment dates: usually July 15 for the winter term, January 15 for the summer term.