You ever wondered how to transport the entries of a table from one system to another?
Like this:
Go to the transaction SE16.
Select your table.
Select the entries you would like to transport.
Go to “Table Entry” and select “Transport Entries”.
The transport request window will pop-up and you can choose where you would like to add your changes.
Have you ever faced the problem that you wanted to change some customizing in an SAP client and got the following message: “System set to Unchangeable“? Let me show you how to change the client settings in order to make your changes go through. Step 1 Transaction SCC4 
Step 2 Make a screenshot of the settings, as you would want to redo the changes. Step 3 Make the changes according to this screenshot: 
You ever wondered what this field on your SAP Logon is?
SAProuter is an SAP program that acts as an intermediate station (proxy) in a network connection between SAP Systems, or between SAP Systems and external networks. SAProuter controls the access to your network (application level gateway), and, as such, is an enhancement to an existing firewall system (port filter).
The string should look similar to this: /H/sapgatea.wdf.sap.corp/S/3299/H/ (/H/host/S/service/W/pass)