For agents, the severity levels of entry point messages for VCS 4.0 and later correspond to the pre-VCS 4.0 entry point message tags as shown in this table:
Log Tag (Pre-VCS 4.0)
Log Severity (VCS 4.0 and later)
TAG_A
VCS_CRITICAL
TAG_B
VCS_ERROR
TAG_C
VCS_WARNING
TAG_D
VCS_NOTE
TAG_E
VCS_INFORMATION
TAG_F through TAG_Z
VCS_DBG1 through VCS_DBG21