I recently installed SAP GUI on my MAC , OS yosemite . After some pitfalls I managed to make it up and running .
So , I thought of writing the steps followed for others striving to achieve the same .
1) Download the JRE8 u 45 from the below link
Java SE Runtime Environment 8 — Downloads
Select the “Mac OS X x64” option in the above link
2) Once the download is complete , install the same on your machine
3) Download the JDK8 u 45 from the below link
Java SE Development Kit 8 — Downloads
Select the “Mac OS X x64” option in the above link
4) Once the download is complete , install the same on your machine
5) Download the SAP GUI for JAVA , from sap service market place , download centre by following the below link
A- Z Index | SAP Support Portal
6) Click on the Index “G” .
https://www.kbvtips.com/guide-to-install-sap-gui-and-test-connection-on-mac/