Quick Guide to Patching your SAP System

I need to upgrade our internal demo systems every once in a while. Now, as I don’t unleash my Basis skills on customers everyday I tend to forget how its done. I decided to record the steps here to save me a bit of time next time around. Please treat any advice given here with care(I’m no expert at this) and read the official guides and help files.

Applying patches to an SAP system is not as simple as, say updating your Windows PC. There is no auto update or one click upgrade process. I will be surprised if there ever will be. The thing is, SAP actually allows you a lot of freedom and flexibility in changing the way it works(Windows doesn’t). The price you pay is a slightly complex upgrade process.

Doing a full Support Pack update of an SAP system broadly involves the following:

1. Log in to the Service Market Place and select the packages to be downloaded. Admittedly, this is a bit easier now with SP Stacks.

2. Log on to your Solution Manager System(Maintenance Optimizer) to confirm your download basket. If you don’t do this you can’t download your Patches. I must still figure out what the benefit of this is.

3. Download the files using the SAP Download Manager.

4. Use sapcar to extract the patches. You can use the command sapcar -xvf from command line to do this. An easy way to extract these files in Windows is to register the extensions .CAR or .SAR to open automatically in Explorer.

You can do this by opening Windows Explorer and going to Tools->Folder Options and clicking on the File Types Tab.

Create a new type for the .CAR/.SAR file types and create a default action as shown in the screen shot below( Copy SAPCAR.EXE to your C:\Windows directory first).