diff --git a/e2e-tests/tests/users/13-add-custom-user-with-public-schema-access.yaml b/e2e-tests/tests/users/13-add-custom-user-with-public-schema-access.yaml
index 99c81c5d0d..7ad867dfc0 100644
--- a/e2e-tests/tests/users/13-add-custom-user-with-public-schema-access.yaml
+++ b/e2e-tests/tests/users/13-add-custom-user-with-public-schema-access.yaml
@@ -7,6 +7,16 @@ commands:
       set -o xtrace
 
       source ../../functions
-
-      kubectl -n ${NAMESPACE} patch perconapgcluster/${test_name} --type=json -p '[{"op":"add", "path":"/spec/autoCreateUserSchema","value":true},{"op":"add", "path":"/spec/users","value":[{"name":"chico","databases":["spain"],"password":{"type":"ASCII"},"secretName":"chico-credentials", "grantPublicSchemaAccess": true}]}]'
-      sleep 10
+      if [[ $PG_VER < 15 ]]; then
+        # grantPublicSchemaAccess is not supported before PPG15. Checking that applying patch fails."
+        set +o errexit
+        patch_output=$(kubectl -n ${NAMESPACE} patch perconapgcluster/${test_name} --type=json -p '[{"op":"add", "path":"/spec/autoCreateUserSchema","value":true},{"op":"add", "path":"/spec/users","value":[{"name":"chico","databases":["spain"],"password":{"type":"ASCII"},"secretName":"chico-credentials", "grantPublicSchemaAccess": true}]}]' 2>&1)
+        set -o errexit
+        if [[ $patch_output != 'The PerconaPGCluster "users" is invalid: spec: Invalid value: "object": PostgresVersion must be >= 15 if grantPublicSchemaAccess exists and is true' ]]; then
+          echo "grantPublicSchemaAccess is not supported before PPG15. Current PG_VER = $PG_VER but the patch was applied"
+          exit 1
+        fi
+      else
+        kubectl -n ${NAMESPACE} patch perconapgcluster/${test_name} --type=json -p '[{"op":"add", "path":"/spec/autoCreateUserSchema","value":true},{"op":"add", "path":"/spec/users","value":[{"name":"chico","databases":["spain"],"password":{"type":"ASCII"},"secretName":"chico-credentials", "grantPublicSchemaAccess": true}]}]'
+        sleep 10
+      fi
diff --git a/e2e-tests/tests/users/14-write-data-to-custom-db.yaml b/e2e-tests/tests/users/14-write-data-to-custom-db.yaml
index e395acbb7b..dd07f6912c 100644
--- a/e2e-tests/tests/users/14-write-data-to-custom-db.yaml
+++ b/e2e-tests/tests/users/14-write-data-to-custom-db.yaml
@@ -7,16 +7,19 @@ commands:
 
       source ../../functions
 
-      password=$(get_psql_user_pass chico-credentials)
-      user='chico'
-      db_name='spain'
-      schema='public'
-      hostname=$(get_pgbouncer_host chico-credentials)
+      if [[ $PG_VER < 15 ]]; then
+        echo "grantPublicSchemaAccess is not supported before PPG15.  Current PG_VER = $PG_VER. Skipping check"
+      else
+        password=$(get_psql_user_pass chico-credentials)
+        user='chico'
+        db_name='spain'
+        schema='public'
+        hostname=$(get_pgbouncer_host chico-credentials)
 
-      run_psql \
-        'SET search_path TO public;CREATE TABLE IF NOT EXISTS customApp (id int PRIMARY KEY);' \
-        "-h $hostname -U $user -d $db_name" "$password"
-      run_psql \
-        "INSERT INTO $schema.customApp (id) VALUES (100500)" \
-        "-h $hostname -U $user -d $db_name" "$password"
-        
+        run_psql \
+          'SET search_path TO public;CREATE TABLE IF NOT EXISTS customApp (id int PRIMARY KEY);' \
+          "-h $hostname -U $user -d $db_name" "$password"
+        run_psql \
+          "INSERT INTO $schema.customApp (id) VALUES (100500)" \
+          "-h $hostname -U $user -d $db_name" "$password"
+      fi
diff --git a/e2e-tests/tests/users/15-read-from-primary-custom-db.yaml b/e2e-tests/tests/users/15-read-from-primary-custom-db.yaml
index 04d6b2c43b..c30648c174 100644
--- a/e2e-tests/tests/users/15-read-from-primary-custom-db.yaml
+++ b/e2e-tests/tests/users/15-read-from-primary-custom-db.yaml
@@ -7,13 +7,17 @@ commands:
       set -o xtrace
 
       source ../../functions
+      if [[ $PG_VER < 15 ]]; then
+        echo "grantPublicSchemaAccess is not supported before PPG15. Current PG_VER = $PG_VER. Creating dummy configmap to pass check"
+        kubectl create configmap -n "${NAMESPACE}" 10-read-from-primary-custom-db --from-literal=data=' 100500'
+      else
+        password=$(get_psql_user_pass chico-credentials)
+        user='chico'
+        db_name='spain'
+        schema='public'
+        hostname=$(get_pgbouncer_host chico-credentials)
 
-      password=$(get_psql_user_pass chico-credentials)
-      user='chico'
-      db_name='spain'
-      schema='public'
-      hostname=$(get_pgbouncer_host chico-credentials)
+        data=$(run_psql "SELECT * from $schema.customApp;" "-h $hostname -U $user -d $db_name" "$password")
 
-      data=$(run_psql "SELECT * from $schema.customApp;" "-h $hostname -U $user -d $db_name" "$password")
-
-      kubectl create configmap -n "${NAMESPACE}" 10-read-from-primary-custom-db --from-literal=data="${data}"
+        kubectl create configmap -n "${NAMESPACE}" 10-read-from-primary-custom-db --from-literal=data="${data}"
+      fi
diff --git a/e2e-tests/vars.sh b/e2e-tests/vars.sh
index e7274d7f81..42691936e0 100755
--- a/e2e-tests/vars.sh
+++ b/e2e-tests/vars.sh
@@ -23,7 +23,12 @@ fi
 
 export IMAGE_BASE=${IMAGE_BASE:-"perconalab/percona-postgresql-operator"}
 export IMAGE=${IMAGE:-"${IMAGE_BASE}:${VERSION}"}
-export PG_VER="${PG_VER:-17}"
+if [[ ! $PG_VER && $IMAGE_POSTGRESQL ]]; then
+	pg_version_value=$(echo "$IMAGE_POSTGRESQL" | sed -E 's/.*:(.*ppg)?([0-9]+).*/\2/')
+	export PG_VER="${pg_version_value}"
+else
+	export PG_VER="${PG_VER:-17}"
+fi
 export IMAGE_PGBOUNCER=${IMAGE_PGBOUNCER:-"${IMAGE_BASE}:main-pgbouncer$PG_VER"}
 export IMAGE_POSTGRESQL=${IMAGE_POSTGRESQL:-"perconalab/percona-distribution-postgresql:$PG_VER"}
 export IMAGE_BACKREST=${IMAGE_BACKREST:-"${IMAGE_BASE}:main-pgbackrest$PG_VER"}
@@ -49,10 +54,10 @@ for var in $(printenv | grep -E '^IMAGE' | awk -F'=' '{print $1}'); do
 	fi
 	if [[ $var_value == percona/* || $var_value == perconalab/* ]]; then
 		new_value="${REGISTRY_NAME_FULL}${var_value}"
-		export "$var=$new_value"
-		echo $var=$new_value
+		export "$var"="$new_value"
+		echo "$var"="$new_value"
 	fi
-	echo $IMAGE
+	echo "$IMAGE"
 done
 
 # shellcheck disable=SC2034