What is a CUA buffer?
The CUA buffer holds objects from the GUI interface, such as menus, pushbuttons, and so on. In the database, these objects are held in tables D342L and D345T.
Its size is expressed in KB.
The standard SAP recommendation is:
Up to 2500 KB for small systems, up to 3000 KB for medium systems and up to 6000 KB for large systems.
Dig deeper on SAP Basis administration and NetWeaver administration
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