To reset SAP buffers, enter the value of the appropriate transaction code from the list below.
/$SYNC -- Resets the buffers of the application server
/$CUA -- Resets the CUA buffer of the application server
/$TAB -- Resets the TABLE buffers of the application server
/$NAM -- Resets the nametab buffer of the application server
/$DYN -- Resets the screen buffer of the application server
/$ESM -- Resets the Exp./ Imp. Shared Memory Buffer of the application server
/$PXA -- Resets the Program (PXA) Buffer of the application server.
It is also possible to reset the user buffer in transaction SU56 using menu path Authorization Values -> Reset User Buffer