I did an online update using zypper command "zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-2984=1" and the results:
Refreshing service 'SUSE_Linux_Enterprise_Server_12_SP2_x86_64'.
Loading repository data...
Reading installed packages...
'SUSE-SLE-SAP-12-SP2-2019-2984=1' not found in package names. Trying capabilities.
No provider of 'SUSE-SLE-SAP-12-SP2-2019-2984=1' found.
Resolving package dependencies...
Nothing to do.