diff --git a/bin/zssServer.sh b/bin/zssServer.sh
index 6364cd0df..bc2f108f6 100755
--- a/bin/zssServer.sh
+++ b/bin/zssServer.sh
@@ -164,15 +164,15 @@ fi
 
 if [ -f "$CONFIG_FILE" ]; then
   if [ "$ZWES_LOG_FILE" = "/dev/null" ]; then
-    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ1 ${ZSS_SERVER} "${CONFIG_FILE}" 2>&1
+    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ ${ZSS_SERVER} "${CONFIG_FILE}" 2>&1
   else
-    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ1 ${ZSS_SERVER} "${CONFIG_FILE}" 2>&1 | tee $ZWES_LOG_FILE
+    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ ${ZSS_SERVER} "${CONFIG_FILE}" 2>&1 | tee $ZWES_LOG_FILE
   fi
 else
   if [ "$ZWES_LOG_FILE" = "/dev/null" ]; then
-    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ1 ${ZSS_SERVER} 2>&1
+    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ ${ZSS_SERVER} 2>&1
   else
-    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ1 ${ZSS_SERVER} 2>&1 | tee $ZWES_LOG_FILE
+    _BPX_SHAREAS=NO _BPX_JOBNAME=${ZOWE_PREFIX}SZ ${ZSS_SERVER} 2>&1 | tee $ZWES_LOG_FILE
   fi
 fi
 # This program and the accompanying materials are
diff --git a/c/zss.c b/c/zss.c
index 017cb909f..753dbdb47 100644
--- a/c/zss.c
+++ b/c/zss.c
@@ -1167,13 +1167,8 @@ static void readAgentAddressAndPort(JsonObject *serverConfig, JsonObject *envCon
 static char* generateCookieName(JsonObject *envConfig, int port) {
   int cookieLength=256;
   char *cookieName = safeMalloc(cookieLength+1, "CookieName");
-  char *zoweInstanceId = getenv("ZOWE_INSTANCE");
-  char *haInstanceCountStr = getenv("ZWE_HA_INSTANCES_COUNT");
-  int haInstanceCount=0;
-  if (haInstanceCountStr != NULL) {
-    haInstanceCount = atoi(haInstanceCountStr);
-  }
-  if (haInstanceCount > 1 && zoweInstanceId != NULL) {
+  char *zoweInstanceId = getenv("ZWE_zowe_cookieIdentifier");
+  if (zoweInstanceId != NULL) {
     snprintf(cookieName, cookieLength, "%s.%s", SESSION_TOKEN_COOKIE_NAME, zoweInstanceId);
   } else {
     snprintf(cookieName, cookieLength, "%s.%d", SESSION_TOKEN_COOKIE_NAME, port);