Hi,
AST – track APARs and PTFs
-> once you have the APAR number just type it into the search field at https://www.ibm.com/mysupport/s/?language=en_US, on the APAR page itself, righthand side there is a bottom to subscribe.
SIS – search for service and support information (especially for APAR and PTF search)
-> goes with the same link/search function
ASAP – receive critical service notifications
-> on the same link, left hand side (Support Basics) then go to tile 'Notification Settings' (you can find Notification Settings also by only scrolling down, but it is somewhere in the middle)
#Support#SupportMigration#z/OS