If you call methods with the parameter no_flush = ‘X’ , the method is not sent to the presentation server directly, and is therefore not executed immediately.

Instead, the methods are buffered until the next method call with the parameter no_flush = ' ' occurs or you explicitly call the method cl_gui_cfw=>flush. If you use this technique correctly it can improve performance. However, if you use it incorrectly, inconsistencies may arise in your data. For further information, refer to the Automation Queue section.