notification id by which backgruound process

We have an issue with PO Approvals not receiving to users, we are in process of troubleshooting the issue, we would like to know

We have several Workflow Background Process scheduled to be running, like for example:

GLBATCH, , , Y, N, N
POAPPRV, , , Y, N, N
APINV, , , Y, N, N

OKCALERT, , , Y, Y, N
, , , N, Y, N
IBEALERT, , , Y, N, N
, , , N, Y, N

POXML, , , Y, N, N
REQAPPRV, , , Y, N, N
WFERROR, , , Y, N, N
, , , Y, N, N

WSHNOTIF, , , Y, N, N
APWRECPT, , , Y, N, N

APPEWF, , , Y, N, N
OKSKPRCS, , , Y, N,
IGSPE002, , , Y, N, N
OKCALERT, , , Y, N, N