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A question I get often is about the way I connect to SAP ECC from my Mac.

Obviously, many users prefer to install Windows to their Macbooks and run SAP GUI For Windows over it.

However; SAP has an alternative less known GUI for Linux / Mac systems: SAP GUI For Java. You can download it from for free using an S-user, install it to your Mac like a regular application and connect to any SAP ECC system. No need to install Windows at all.

The way you define a new SAP Connection in SAP GUI For Java differs slightly from SAP GUI For Windows. Let’s assume that you have the following connection information:

  • Address:
  • System No: 02

In SAP GUI For Java, you need to get to the “Advanced” tab, click “Expert mode” and enter the following connection string:


Obviously, the address goes between /H/ and /S/ and the system number goes to the end of the string. If your system ID is 00, you need to enter 3200. If your system ID is 07, you need to enter 3207. In our case, your system ID is 02 so you need to enter 3202.

That’s all there is! Using this connection string, you should be good to go.

Your connection string can contain additional parameters; such as your user name, client number, etc. Here are some sample connection strings:


Here are some sample connection strings going over routers (IP’s changed for security reasons):


The only disadvantage of SAP GUI For Java is for ABAP programmers: Smartforms designer, Workflow tools and graphical screen designer tools are Windows-only and won’t run under SAP GUI For Java. Personally, I have a casual Windows installation with SAP GUI for Windows living under VMWare Fusion. Whenever I need to use one of those tools (maybe once a month); I run Windows inside the virtual machine without leaving Mac OS, get my job done, shut down Windows and continue working on the Mac with SAP GUI For Java.
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  1. Former Member

    This blog entry is super useful because it’s been hard for me to find the official documentation on PlatinGUI aka SAP GUI for Java connection strings. This blog entry has good google juice but the closest thing I could find to thorough documentation of all the parameters is here:

    It looks like that’s coming out of a manual for 7.10, so it’s out of date. Am I confused or is there an official manual that’s pretty hard to search via ?

  2. Former Member

    Dear Dr. Kerem Koseoglu, your post has been really interesting to me. Because I’ve been looking for a post during several years about how configure SAP Gui for Java, and only in your I understood what’s the correct way to do it.

    Great post.


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