Extended Syntax check Tool or SLIN transaction

The Program Extended Syntax check is the simplest and least CPU-intensive analysis tool.

It can be found from ABAP Editor by following the menu path:

 Program-> Check->Extended prog. 

OR you can run the transaction SLIN.

The check can be limited to specific options - for details on each one, select the option and hit F1.

When you click the 'Perform check' pushbutton, an extended check will occur for all selected options (Switch on and off checks buttons are to select/deselect all).  

Note - this check will take longer than a usual Syntax check, but once it has been performed once for a particular program, it is stored in memory and the time elapsed will improve

The number of errors and warnings are listed in a table after the check has run.  To see these, double click on a line, and the details will be displayed.  Double clicking on the specific message will take you to the line of code in the ABAP Editor to which it refers.

For further information see the online help on Extended Program Check