UPG_ZDM_PRELOCKALL is a standard SAP function module that performs functionality. This is available within standard R/3 SAP systems depending on version and release level.
Below are the pattern details for this FM showing its interface including any import, export and tables parameters. There is also a list of Exceptions and for your convenience any standard documentation available. All this information and more can also be viewed if you enter the function module name UPG_ZDM_PRELOCKALL into the relevant SAP transaction such as SE37 or SE80.
CALL FUNCTION 'UPG_ZDM_PRELOCKALL' "
IMPORTING
et_lock_errors = " sprot_u_tab Table Type for SPROT_U (Log Interface)
EXCEPTIONS
E071_FORMAT_TRANSLATION = 1 " Translation of OBJM OBJECTNAME, OBJECTTYPE in E071 format failed
. " UPG_ZDM_PRELOCKALL