diff --git a/gen/ad_group_vsup b/gen/ad_group_vsup
index 85183c9c..2341698d 100755
--- a/gen/ad_group_vsup
+++ b/gen/ad_group_vsup
@@ -53,6 +53,10 @@ my $usersByResource = {};
 foreach my $resourceId ($data->getResourceIds()) {
 
 	my $group = $data->getResourceAttributeValue( resource => $resourceId, attrName => $A_R_GROUP_NAME );
+	unless (defined $group) {
+		print STDERR "Resource with ID: $resourceId has no AD group name!";
+		exit 1;
+	}
 	$groups->{$group} = 1;
 
 	# FOR EACH MEMBER ON RESOURCE
diff --git a/gen/banned_facility_users b/gen/banned_facility_users
new file mode 100755
index 00000000..9ab4655c
--- /dev/null
+++ b/gen/banned_facility_users
@@ -0,0 +1,45 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+use perunServicesInit;
+use perunServicesUtils;
+use Perun::Agent;
+use JSON::XS;
+
+our $SERVICE_NAME = "banned_facility_users";
+our $PROTOCOL_VERSION = "3.0.0";
+my $SCRIPT_VERSION = "3.0.0";
+
+perunServicesInit::init;
+my $DIRECTORY = perunServicesInit::getDirectory;
+my $data = perunServicesInit::getHashedHierarchicalData;
+
+my $agent = Perun::Agent->new();
+my $bansAgent = $agent->getBanOnFacilityAgent;
+
+#Constants
+our $A_U_F_IS_BANNED;		*A_U_F_IS_BANNED = \'urn:perun:user_facility:attribute-def:virt:isBanned';
+
+my %bansStruc;
+my $facilityId = perunServicesInit::getFacility->getId;
+my @bans = $bansAgent->getBansForFacility(facilityId => $facilityId);
+
+foreach my $memberId ($data->getMemberIdsForFacility) {
+	my $isBanned = $data->getUserFacilityAttributeValue( member => $memberId, attrName => $A_U_F_IS_BANNED );
+	if ($isBanned) {
+		my $uid = $data->getUserIdForMember(member => $memberId);
+		foreach my $ban (@bans) {
+			if ($ban->getUserId() eq $uid) {
+				$bansStruc{$uid} = $ban;
+			}
+		}
+	}
+}
+
+my $fileName = "$DIRECTORY/$SERVICE_NAME";
+open FILE, ">$fileName" or die "Cannot open $fileName: $! \n";
+print FILE JSON::XS->new->utf8->pretty->canonical->convert_blessed->encode(\%bansStruc);
+close FILE or die "Cannot close $fileName: $! \n";
+
+
+perunServicesInit::finalize;
diff --git a/gen/du_info_export b/gen/du_info_export
index b1964b17..4f083908 100755
--- a/gen/du_info_export
+++ b/gen/du_info_export
@@ -9,7 +9,7 @@ use Tie::IxHash;
 
 our $SERVICE_NAME = "du_info_export";
 our $PROTOCOL_VERSION = "3.0.0";
-my $SCRIPT_VERSION = "3.0.1";
+my $SCRIPT_VERSION = "3.0.2";
 
 perunServicesInit::init;
 my $DIRECTORY = perunServicesInit::getDirectory;
@@ -22,7 +22,7 @@ my $attributesAgent = $agent->getAttributesAgent;
 
 #Constants
 our $A_USER_MAIL;                *A_USER_MAIL =                \'urn:perun:user:attribute-def:def:preferredMail';
-our $A_USER_LOGIN_EINFRA;        *A_USER_LOGIN_EINFRA =        \'urn:perun:user:attribute-def:def:login-namespace:einfra';
+our $A_USER_LOGIN_EINFRA;        *A_USER_LOGIN_EINFRA =        \'urn:perun:user:attribute-def:virt:optional-login-namespace:einfra';
 our $A_RESOURCE_NAME;            *A_RESOURCE_NAME =            \'urn:perun:resource:attribute-def:core:name';
 our $A_R_VO_NAME;                *A_R_VO_NAME =                \'urn:perun:resource:attribute-def:virt:voShortName';
 our $A_F_NAME;                   *A_F_NAME =                   \'urn:perun:facility:attribute-def:core:name';
@@ -77,6 +77,7 @@ foreach my $resourceId ($data->getResourceIds()) {
 	foreach my $memberId ($data->getMemberIdsForResource(resource => $resourceId)) {
 		my $uuid = $data->getUserAttributeValue(attrName => $A_U_UUID, member => $memberId);
 		my $einfraLogin = $data->getUserAttributeValue(attrName => $A_USER_LOGIN_EINFRA, member => $memberId);
+		$einfraLogin = defined $einfraLogin ? $einfraLogin : "";
 
 		unless(defined $attributesByUUID{$uuid}) {
 
diff --git a/gen/scs_it4i b/gen/scs_it4i
new file mode 100755
index 00000000..ccc1b130
--- /dev/null
+++ b/gen/scs_it4i
@@ -0,0 +1,53 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+use perunServicesInit;
+use perunServicesUtils;
+use File::Basename;
+
+our $SERVICE_NAME = basename($0);
+our $PROTOCOL_VERSION = "3.0.0";
+my $SCRIPT_VERSION = "3.0.0";
+
+perunServicesInit::init;
+my $DIRECTORY = perunServicesInit::getDirectory;
+my $data = perunServicesInit::getHashedHierarchicalData;
+
+#Constants
+our $A_USER_LOGIN_EINFRA;         *A_USER_LOGIN_EINFRA =     \'urn:perun:user:attribute-def:def:login-namespace:einfra';
+our $A_ORGANIZATION;              *A_ORGANIZATION =          \'urn:perun:user:attribute-def:def:organization';
+our $A_BLOCK_COLLISION;           *A_BLOCK_COLLISION =       \'urn:perun:user:attribute-def:def:it4iBlockCollision';
+
+my $service_file_name = "$DIRECTORY/$::SERVICE_NAME";
+
+my $users;
+
+foreach my $memberId ($data->getMemberIdsForFacility()) {
+
+	my $collision = $data->getUserAttributeValue( member => $memberId, attrName => $A_BLOCK_COLLISION );
+	my $login = $data->getUserAttributeValue( member => $memberId, attrName => $A_USER_LOGIN_EINFRA );
+	my $org = $data->getUserAttributeValue( member => $memberId, attrName => $A_ORGANIZATION ) || "";
+
+	# Check if user is not prohibited in IT4I !!
+	if (defined $collision) {
+		die "Login '$login' has collision with old IT4I data. Propagations was stopped for safety."
+	}
+
+	$users->{$login}->{"login"} = $login;
+	$users->{$login}->{"organization"} = $org;
+	$users->{$login}->{"citizenship"} = "";  # TODO
+
+}
+
+# convert structure to the result json
+my @result;
+foreach my $login (sort keys %{$users}) {
+	push(@result, $users->{$login})
+}
+
+####### output file ######################
+open SERVICE_FILE, ">:encoding(UTF-8)", "$service_file_name" or die "Cannot open $service_file_name: $! \n";
+print SERVICE_FILE JSON::XS->new->utf8->pretty->canonical->encode(\@result);
+close(SERVICE_FILE);
+#####################################################
+perunServicesInit::finalize;
diff --git a/send/banned_facility_users b/send/banned_facility_users
new file mode 100755
index 00000000..a7dba5d6
--- /dev/null
+++ b/send/banned_facility_users
@@ -0,0 +1,4 @@
+#!/bin/bash
+export SERVICE_NAME="banned_facility_users"
+
+python3 generic_send.py "$1" "$2" "$3"
diff --git a/send/scs_it4i b/send/scs_it4i
new file mode 100755
index 00000000..b47f25f5
--- /dev/null
+++ b/send/scs_it4i
@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+import requests
+import json
+import re
+from json.decoder import JSONDecodeError
+
+urlPattern = re.compile("^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;()*$']*[-a-zA-Z0-9+&@#/%=~_|()*$']")
+
+if __name__ == "__main__":
+
+    # check input
+    if len(sys.argv) != 4 and len(sys.argv) != 3:
+        print("Error: Expected number of arguments is 2 or 3 (FACILITY_NAME, DESTINATION and optional DESTINATION_TYPE)", file=sys.stderr)
+        exit(1)
+
+    facility_name = sys.argv[1]
+    destination = sys.argv[2]
+    if len(sys.argv) == 3:
+        # if there is no destination type, use default 'url'
+        destination_type = "url"
+    else:
+        destination_type = sys.argv[3]
+
+    if destination_type != "url":
+        print("Only 'url' type of destination is supported.", file=sys.stderr)
+        exit(1)
+
+    if not (re.fullmatch(urlPattern, destination)):
+        print("Destination '" + destination + "' is not in valid URL format!", file=sys.stderr)
+        exit(1)
+
+    # Import client config (file must have .py -> "scs_it4i.py")
+    try:
+        sys.path.insert(1, '/etc/perun/services/scs_it4i/')
+        CLIENT_ID = __import__("scs_it4i").CLIENT_ID
+        CLIENT_SECRET = __import__("scs_it4i").CLIENT_SECRET
+        TOKEN_API = __import__("scs_it4i").TOKEN_API
+    except ImportError as ie:
+        # this means that config file does not exist
+        print("Failed to import config! - " + ie.msg, file=sys.stderr)
+        exit(1)
+
+    if not CLIENT_ID:
+        print("CLIENT_ID configuration is empty!", file=sys.stderr)
+        exit(1)
+
+    if not CLIENT_SECRET:
+        print("CLIENT_SECRET configuration is empty!", file=sys.stderr)
+        exit(1)
+
+    if not TOKEN_API:
+        print("TOKEN_API configuration is empty!", file=sys.stderr)
+        exit(1)
+
+    # Request authorization token via client_id/client_secret
+    token_req = requests.post(
+        TOKEN_API,
+        data = {
+            "client_id": CLIENT_ID,
+            "client_secret": CLIENT_SECRET,
+            "grant_type": "client_credentials"
+        }
+    )
+
+    if token_req.status_code != 200:
+        print("Unable to acquire token!", file=sys.stderr)
+        exit(1)
+
+    try:
+        token_st = json.loads(token_req.text)
+    except JSONDecodeError:
+        print("Invalid token!", file=sys.stderr)
+        exit(1)
+
+    # read all lines at once
+    service_files_base_dir = os.getcwd() + "/../gen/spool"
+    service_files_dir = service_files_base_dir + "/" + facility_name + "/scs_it4i"
+
+    file = open(service_files_dir + "/scs_it4i", mode='r')
+    all_of_it = file.read()
+    file.close()
+
+    try:
+        all_of_it_json = json.loads(all_of_it)
+    except JSONDecodeError:
+        print("Invalid JSON in generated data!", file=sys.stderr)
+        exit(1)
+
+    # Call einfra-user-attr with auth token
+    user_attr_req = requests.post(
+        destination,
+        headers = { "Authorization": "Bearer " + token_st["access_token"] },
+        json = all_of_it
+    )
+
+    response = user_attr_req.text.strip()
+
+    if user_attr_req.status_code != 200:
+        print(f"Failed to import data ({response})", file=sys.stderr)
+
+    else:
+        print(f"Import succeeded ({response})")