diff --git a/lib/Froxlor/Api/Commands/PhpSettings.php b/lib/Froxlor/Api/Commands/PhpSettings.php
index 5f0be1ee..26ef83eb 100644
--- a/lib/Froxlor/Api/Commands/PhpSettings.php
+++ b/lib/Froxlor/Api/Commands/PhpSettings.php
@@ -217,7 +217,9 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 	 *        	optional number of seconds for idle-timeout if FPM is used, default is fpm-daemon-value
 	 * @param string $limit_extensions
 	 *        	optional limitation of php-file-extensions if FPM is used, default is fpm-daemon-value
-	 *        	
+	 * @param bool $allow_all_customers
+	 *        	optional add this configuration to the list of every existing customer's allowed-fpm-config list, default is false (no)
+	 *
 	 * @access admin
 	 * @throws \Exception
 	 * @return string json-encoded array
@@ -261,6 +263,7 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 			$max_requests = $this->getParam('max_requests', true, $def_fpmconfig['max_requests']);
 			$idle_timeout = $this->getParam('idle_timeout', true, $def_fpmconfig['idle_timeout']);
 			$limit_extensions = $this->getParam('limit_extensions', true, $def_fpmconfig['limit_extensions']);
+			$allow_all_customers = $this->getBoolParam('allow_all_customers', true, 0);
 
 			// validation
 			$description = \Froxlor\Validate\Validate::validate($description, 'description', '', '', array(), true);
@@ -367,6 +370,8 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 			$result = $this->apiCall('PhpSettings.get', array(
 				'id' => $ins_data['id']
 			));
+
+			$this->addForAllCustomers($allow_all_customers, $ins_data['id']);
 			return $this->response(200, "successful", $result);
 		}
 		throw new \Exception("Not allowed to execute given command.", 403);
@@ -418,6 +423,8 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 	 *        	optional number of seconds for idle-timeout if FPM is used, default is fpm-daemon-value
 	 * @param string $limit_extensions
 	 *        	optional limitation of php-file-extensions if FPM is used, default is fpm-daemon-value
+	 * @param bool $allow_all_customers
+	 *        	optional add this configuration to the list of every existing customer's allowed-fpm-config list, default is false (no)
 	 *        	
 	 * @access admin
 	 * @throws \Exception
@@ -456,6 +463,7 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 			$max_requests = $this->getParam('max_requests', true, $result['max_requests']);
 			$idle_timeout = $this->getParam('idle_timeout', true, $result['idle_timeout']);
 			$limit_extensions = $this->getParam('limit_extensions', true, $result['limit_extensions']);
+			$allow_all_customers = $this->getBoolParam('allow_all_customers', true, 0);
 
 			// validation
 			$description = \Froxlor\Validate\Validate::validate($description, 'description', '', '', array(), true);
@@ -563,6 +571,8 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 			$result = $this->apiCall('PhpSettings.get', array(
 				'id' => $id
 			));
+
+			$this->addForAllCustomers($allow_all_customers, $id);
 			return $this->response(200, "successful", $result);
 		}
 		throw new \Exception("Not allowed to execute given command.", 403);
@@ -618,4 +628,38 @@ class PhpSettings extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Resour
 		}
 		throw new \Exception("Not allowed to execute given command.", 403);
 	}
+
+	/**
+	 * add given php-config id to the list of allowed php-config to all currently existing customers
+	 * if allow_all_customers parameter is true in PhpSettings::add() or PhpSettings::update()
+	 *
+	 * @param bool $allow_all_customers
+	 * @param int $config_id
+	 */
+	private function addForAllCustomers(bool $allow_all_customers, int $config_id)
+	{
+		// should this config be added to the allowed list of all existing customers?
+		if ($allow_all_customers) {
+			$sel_stmt = Database::prepare("SELECT customerid, allowed_phpconfigs FROM `" . TABLE_PANEL_CUSTOMERS . "`");
+			$upd_stmt = Database::prepare("UPDATE `" . TABLE_PANEL_CUSTOMERS . "` SET allowed_phpconfigs = :ap WHERE customerid = :cid");
+			Database::pexecute($sel_stmt);
+			while ($cust = $sel_stmt->fetch(\PDO::FETCH_ASSOC)) {
+				// get existing entries of customer
+				$ap = json_decode($cust['allowed_phpconfigs'], true);
+				// initialize array if it's empty
+				if (empty($ap)) {
+					$ap = [];
+				}
+				// add this config
+				$ap[] = $config_id;
+				// check for duplicates and force value-type to be int
+				$ap = array_map('intval', array_unique($ap));
+				// update customer-entry
+				Database::pexecute($upd_stmt, [
+					'ap' => json_encode($ap),
+					'cid' => $cust['customerid']
+				]);
+			}
+		}
+	}
 }
diff --git a/lib/formfields/admin/phpconfig/formfield.phpconfig_add.php b/lib/formfields/admin/phpconfig/formfield.phpconfig_add.php
index 41506df2..d3aa3e84 100644
--- a/lib/formfields/admin/phpconfig/formfield.phpconfig_add.php
+++ b/lib/formfields/admin/phpconfig/formfield.phpconfig_add.php
@@ -179,6 +179,17 @@ return array(
 						'cols' => 80,
 						'rows' => 20,
 						'value' => $result['phpsettings']
+					),
+					'allow_all_customers' => array(
+						'label' => $lng['serversettings']['phpfpm_settings']['allow_all_customers'],
+						'type' => 'checkbox',
+						'values' => array(
+							array(
+								'label' => $lng['panel']['yes'],
+								'value' => '1'
+							)
+						),
+						'value' => array()
 					)
 				)
 			)
diff --git a/lib/formfields/admin/phpconfig/formfield.phpconfig_edit.php b/lib/formfields/admin/phpconfig/formfield.phpconfig_edit.php
index ef6acff5..c4d45c92 100644
--- a/lib/formfields/admin/phpconfig/formfield.phpconfig_edit.php
+++ b/lib/formfields/admin/phpconfig/formfield.phpconfig_edit.php
@@ -187,6 +187,17 @@ return array(
 						'cols' => 80,
 						'rows' => 20,
 						'value' => $result['phpsettings']
+					),
+					'allow_all_customers' => array(
+						'label' => $lng['serversettings']['phpfpm_settings']['allow_all_customers'],
+						'type' => 'checkbox',
+						'values' => array(
+							array(
+								'label' => $lng['panel']['yes'],
+								'value' => '1'
+							)
+						),
+						'value' => array()
 					)
 				)
 			)
diff --git a/lng/english.lng.php b/lng/english.lng.php
index 20389f17..9472e51f 100644
--- a/lng/english.lng.php
+++ b/lng/english.lng.php
@@ -2132,3 +2132,6 @@ $lng['error']['local_group_exists'] = 'The given group already exists on the sys
 $lng['error']['local_group_invalid'] = 'The given group name is invalid';
 $lng['error']['invaliddnsforletsencrypt'] = 'The domains DNS does not include any of the chosen IP addresses. Let\'s Encrypt certificate generation not possible.';
 $lng['error']['notallowedphpconfigused'] = 'Trying to use php-config which is not assigned to customer';
+
+$lng['serversettings']['phpfpm_settings']['allow_all_customers']['title'] = 'Assign this configuration to all currently existing customers';
+$lng['serversettings']['phpfpm_settings']['allow_all_customers']['description'] = 'Set this to "true" if you want to assign this configuration to all currently existing customers so it can be used by them. This setting is not permanent but can be run multiple times.';
diff --git a/lng/german.lng.php b/lng/german.lng.php
index b00dd44b..7d85d144 100644
--- a/lng/german.lng.php
+++ b/lng/german.lng.php
@@ -1778,3 +1778,6 @@ $lng['error']['local_group_exists'] = 'Die angegebene Gruppe existiert bereits a
 $lng['error']['local_group_invalid'] = 'Der angegebene Gruppen-Name ist nicht gültig';
 $lng['error']['invaliddnsforletsencrypt'] = 'Die DNS-Einträge der Domain enhalten keine der gewählten IP Adressen. Let\'s Encrypt Zertifikats-Erstellung ist nicht möglich.';
 $lng['error']['notallowedphpconfigused'] = 'Nutzung einer PHP-Konfiguration welche nicht dem Kunden zugeordnet ist';
+
+$lng['serversettings']['phpfpm_settings']['allow_all_customers']['title'] = 'Für aktuelle Kunden automatisch hinzufügen';
+$lng['serversettings']['phpfpm_settings']['allow_all_customers']['description'] = 'Ist diese Einstellung aktiv, wird die Konfiguration automatisch allen aktuell existierenden Kunden-Accounts zugewiesen. Diese Einstellung ist nicht permanent, kann aber mehrfach / nach Bedarf ausgeführt werden.';
diff --git a/tests/PhpAndFpm/PhpSettingsTest.php b/tests/PhpAndFpm/PhpSettingsTest.php
index 29b61fe0..7365a90a 100644
--- a/tests/PhpAndFpm/PhpSettingsTest.php
+++ b/tests/PhpAndFpm/PhpSettingsTest.php
@@ -97,4 +97,34 @@ class PhpSettingsText extends TestCase
 			'id' => 1
 		))->get();
 	}
+
+	/**
+	 * @depends testAdminPhpSettingsAdd
+	 */
+	public function testAdminPhpSettingsAddForAll()
+	{
+		global $admin_userdata;
+		$data = [
+			'description' => 'test php #2',
+			'phpsettings' => 'error_reporting=E_ALL',
+			'fpmconfig' => Settings::Get('phpfpm.defaultini'),
+			'allow_all_customers' => true
+		];
+		$json_result = PhpSettings::getLocal($admin_userdata, $data)->add();
+		$result = json_decode($json_result, true)['data'];
+		$required_id = $result['id'];
+
+		$json_result = Customers::getLocal($admin_userdata)->listing();
+		$result = json_decode($json_result, true)['data'];
+
+		$allowed_cnt = 0;
+		foreach ($result['list'] as $customer) {
+			$cust_phpconfigsallowed = json_decode($customer['allowed_phpconfigs'], true);
+			if (!in_array($required_id, $cust_phpconfigsallowed)) {
+				$this->fail("Customer does not have php-config assigned which was added for all customers");
+			}
+			$allowed_cnt++;
+		}
+		$this->assertTrue($allowed_cnt == $result['count']);
+	}
 }