diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxDateController.php b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxDateController.php
index 7e99dde3..6e0fe915 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxDateController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxDateController.php
@@ -89,8 +89,8 @@ class AjaxDateController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $this->processFilterSettingsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processFilterSettingsArgument($forcedConceptUids);
     }
 
     /**
@@ -111,8 +111,8 @@ class AjaxDateController extends ActionController
             ]);
         }
         if ($filterSettings === null) {
-            $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid, false);
+            $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids, false);
         }
         $altProductLink = null;
         $altLabel = null;
diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxFilterpanelController.php b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxFilterpanelController.php
index 3e107dc6..c1aee5f1 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxFilterpanelController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxFilterpanelController.php
@@ -61,8 +61,8 @@ class AjaxFilterpanelController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $this->processFilterSettingsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processFilterSettingsArgument($forcedConceptUids);
     }
 
     /**
diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchController.php b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchController.php
index f3f69f60..c6c6ebc8 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchController.php
@@ -77,8 +77,8 @@ class AjaxSearchController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $this->processFilterSettingsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processFilterSettingsArgument($forcedConceptUids);
     }
 
     /**
@@ -90,11 +90,11 @@ class AjaxSearchController extends ActionController
     {
         $dateSelected = false;
         $organic = true;
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
         $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids']);
 
         if ($filterSettings === null) {
-            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid);
+            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids);
         }
 
         if ($filterSettings->getDateFrom() !== null || $filterSettings->getDateTo() !== null) {
@@ -104,7 +104,7 @@ class AjaxSearchController extends ActionController
         $searchResult = $this->searchResultService->getResult($filterSettings, $excludedConceptUids);
 
         if ($searchResult->getTotal() === 0) {
-            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid);
+            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids);
             $searchResult = $this->searchResultService->getResult($filterSettings, $excludedConceptUids);
             $organic = false;
         }
diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchbarController.php b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchbarController.php
index 46bacaa7..f38394b4 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchbarController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxSearchbarController.php
@@ -56,8 +56,8 @@ class AjaxSearchbarController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = $this->settings['forcedConceptUid'];
-        $this->processSearchParamsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processSearchParamsArgument($forcedConceptUids);
     }
 
     /**
@@ -68,8 +68,8 @@ class AjaxSearchbarController extends ActionController
     {
         if ($searchParams === null) {
             $searchParams = new SearchParams();
-            $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid);
+            $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids);
         } else {
             $filterSettings = FilterSettings::fromSearchParams($searchParams);
         }
@@ -86,8 +86,8 @@ class AjaxSearchbarController extends ActionController
     public function resetAction()
     {
         $searchParams = new SearchParams();
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids);
         $filterOptions = $this->filterService->getFilterOptions($filterSettings);
         return json_encode([
             'filterOptions' => $filterOptions,
diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxTableController.php b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxTableController.php
index 851f8467..5d12e13f 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/AjaxTableController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/AjaxTableController.php
@@ -78,8 +78,8 @@ class AjaxTableController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $this->processFilterSettingsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processFilterSettingsArgument($forcedConceptUids);
     }
 
     /**
@@ -100,8 +100,8 @@ class AjaxTableController extends ActionController
     )
     {
         if ($filterSettings === null) {
-            $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid, false);
+            $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+            $filterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids, false);
         }
         if ($reseller = $this->resellerDataService->getResellerForCurrentDomain()) {
             $paCode = $reseller['paCode'];
diff --git a/web/typo3conf/ext/ep_products/Classes/Controller/SearchController.php b/web/typo3conf/ext/ep_products/Classes/Controller/SearchController.php
index 4cc16036..0ac2424a 100644
--- a/web/typo3conf/ext/ep_products/Classes/Controller/SearchController.php
+++ b/web/typo3conf/ext/ep_products/Classes/Controller/SearchController.php
@@ -69,8 +69,8 @@ class SearchController extends ActionController
 
     public function initializeAction()
     {
-        $forcedConceptUid = (int) $this->settings['forcedConceptUid'];
-        $this->defaultFilterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->defaultFilterSettings = $this->filterService->getDefaultFilterSettings($forcedConceptUids);
         $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids']);
         $this->defaultFilterOptions = $this->filterService->getFilterOptions($this->defaultFilterSettings, $excludedConceptUids);
     }
@@ -99,9 +99,9 @@ class SearchController extends ActionController
 
     public function initializeSearchresultAction()
     {
-        $forcedConceptUid = $this->settings['forcedConceptUid'];
-        $this->processSearchParamsArgument($forcedConceptUid);
-        $this->processFilterSettingsArgument($forcedConceptUid);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $this->processSearchParamsArgument($forcedConceptUids);
+        $this->processFilterSettingsArgument($forcedConceptUids);
     }
 
     /**
diff --git a/web/typo3conf/ext/ep_products/Classes/Domain/Model/FilterSettings.php b/web/typo3conf/ext/ep_products/Classes/Domain/Model/FilterSettings.php
index 35f11457..c84dc51d 100644
--- a/web/typo3conf/ext/ep_products/Classes/Domain/Model/FilterSettings.php
+++ b/web/typo3conf/ext/ep_products/Classes/Domain/Model/FilterSettings.php
@@ -151,10 +151,6 @@ class FilterSettings implements \JsonSerializable
     {
         if ($dateFrom !== null) {
             $this->setDateFrom($dateFrom);
-        } else {
-            // Disabling the minimum date shouldn't be a problem since
-            // imported dates are never in the past
-            //$this->setDateFrom(new \DateTime('now'));
         }
 
         if ($dateTo !== null) {
@@ -181,8 +177,8 @@ class FilterSettings implements \JsonSerializable
                     break;
             }
         }
-        if ($searchParams->getConceptUid()) {
-            $filterSettings->setConceptUids([ $searchParams->getConceptUid() ]);
+        if ($searchParams->getConceptUids()) {
+            $filterSettings->setConceptUids($searchParams->getConceptUids());
         }
         $filterSettings->setPriceRange($searchParams->getPriceRange());
         $filterSettings->setPax($searchParams->getPax());
diff --git a/web/typo3conf/ext/ep_products/Classes/Domain/Model/SearchParams.php b/web/typo3conf/ext/ep_products/Classes/Domain/Model/SearchParams.php
index ac597022..b44158c1 100644
--- a/web/typo3conf/ext/ep_products/Classes/Domain/Model/SearchParams.php
+++ b/web/typo3conf/ext/ep_products/Classes/Domain/Model/SearchParams.php
@@ -55,9 +55,9 @@ class SearchParams implements \JsonSerializable
     protected $destinationType;
 
     /**
-     * @var int
+     * @var array
      */
-    protected $conceptUid = 0;
+    protected $conceptUids = [];
 
     /**
      * @var int
@@ -163,19 +163,19 @@ class SearchParams implements \JsonSerializable
     }
 
     /**
-     * @return int
+     * @return array
      */
-    public function getConceptUid()
+    public function getConceptUids()
     {
-        return $this->conceptUid;
+        return $this->conceptUids;
     }
 
     /**
-     * @param int $conceptUid
+     * @param array $conceptUids
      */
-    public function setConceptUid($conceptUid)
+    public function setConceptUids(array $conceptUids)
     {
-        $this->conceptUid = $conceptUid;
+        $this->conceptUids = $conceptUids;
     }
 
     /**
@@ -235,7 +235,7 @@ class SearchParams implements \JsonSerializable
             'priceRange' => $this->getPriceRange(),
             'destinationUid' => $this->getDestinationUid(),
             'destinationType' => $this->getDestinationType(),
-            'conceptUid' => $this->getConceptUid(),
+            'conceptUids' => $this->getConceptUids(),
             'nights' => $this->getNights(),
             'pax' => $this->getPax(),
             'pageUid' => $this->getPageUid(),
@@ -244,4 +244,4 @@ class SearchParams implements \JsonSerializable
         ];
     }
 
-}
\ No newline at end of file
+}
diff --git a/web/typo3conf/ext/ep_products/Classes/Service/FilterService.php b/web/typo3conf/ext/ep_products/Classes/Service/FilterService.php
index 3f0f3196..c6007c2c 100644
--- a/web/typo3conf/ext/ep_products/Classes/Service/FilterService.php
+++ b/web/typo3conf/ext/ep_products/Classes/Service/FilterService.php
@@ -58,20 +58,20 @@ class FilterService implements SingletonInterface
     }
 
     /**
-     * @param int $forcedConceptUid
+     * @param array $forcedConceptUids
      * @param bool $respectBookableDaterange
      *
      * @return FilterSettings
      */
-    public function getDefaultFilterSettings($forcedConceptUid = null, $respectBookableDaterange = true)
+    public function getDefaultFilterSettings(array $forcedConceptUids = [], $respectBookableDaterange = true)
     {
         [ $dateFrom, $dateTo ] = $this->constrainDateRange($this->getDateRange());
         if (!$respectBookableDaterange) {
             $dateFrom = new \DateTime('now');
         }
         $filterSettings = new FilterSettings($dateFrom, $dateTo);
-        if ($forcedConceptUid) {
-            $filterSettings->setConceptUids([ $forcedConceptUid ]);
+        if ($forcedConceptUids) {
+            $filterSettings->setConceptUids($forcedConceptUids);
         }
 
         return $filterSettings;
diff --git a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
index 289eb0c1..453f5d66 100644
--- a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
+++ b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
@@ -39,9 +39,9 @@ trait RequestArgumentTypeConversionTrait
 
     /**
      * Converts array to searchparams object
-     * @param null $forcedConceptUid
+     * @param array $forcedConceptUids
      */
-    public function processSearchParamsArgument($forcedConceptUid = null)
+    public function processSearchParamsArgument(array $forcedConceptUids = [])
     {
         if ($this->request->hasArgument('searchParams')) {
 
@@ -60,8 +60,8 @@ trait RequestArgumentTypeConversionTrait
                 }
             }
 
-            if ($forcedConceptUid) {
-                $searchParamsObject->setConceptUid($forcedConceptUid);
+            if ($forcedConceptUids) {
+                $searchParamsObject->setConceptUids($forcedConceptUids);
             }
 
             $this->request->setArgument('searchParams', $searchParamsObject);
@@ -70,9 +70,9 @@ trait RequestArgumentTypeConversionTrait
 
     /**
      * Converts urlencoded json or array to filtersettings object
-     * @param null $forcedConceptUid
+     * @param array $forcedConceptUids
      */
-    public function processFilterSettingsArgument($forcedConceptUid = null)
+    public function processFilterSettingsArgument(array $forcedConceptUids = [])
     {
         if ($this->request->hasArgument('filterSettings')) {
 
@@ -111,9 +111,9 @@ trait RequestArgumentTypeConversionTrait
                 }
             }
 
-            if ($forcedConceptUid) {
+            if ($forcedConceptUids) {
                 $conceptUids = $filterSettingsObject->getConceptUids();
-                $conceptUids[] = $forcedConceptUid;
+                array_push($conceptUids, ...$forcedConceptUids);
                 $filterSettingsObject->setConceptUids($conceptUids);
             }
 
@@ -134,7 +134,7 @@ trait RequestArgumentTypeConversionTrait
      * @param mixed $value
      * @return mixed
      */
-    static protected function convertType($value)
+    protected static function convertType($value)
     {
         if (\is_string($value) && (strtolower($value) === 'true' || strtolower($value) === 'false')) {
             return strtolower($value) === 'true';
diff --git a/web/typo3conf/ext/ep_products/Configuration/TypoScript/constants.txt b/web/typo3conf/ext/ep_products/Configuration/TypoScript/constants.txt
index 3e32f07e..33489bc8 100644
--- a/web/typo3conf/ext/ep_products/Configuration/TypoScript/constants.txt
+++ b/web/typo3conf/ext/ep_products/Configuration/TypoScript/constants.txt
@@ -24,8 +24,8 @@ plugin.tx_epproducts {
         defaultDetailPageUid =
 		# cat=plugin.tx_epproducts//a; type=string; label=Exclude products with concept UIDs from search result (CSV)
 		excludedConceptUids =
-		# cat=plugin.tx_epproducts//a; type=string; label=Force concept UID in all search related parts
-		forcedConceptUid =
+		# cat=plugin.tx_epproducts//a; type=string; label=Force concept UID in all search related parts (CSV)
+		forcedConceptUids =
 		# cat=plugin.tx_epproducts//a; type=string; label=Don't show availability info for products with these concept UIDs
 		noInfoConceptUids =
 		# cat=plugin.tx_epproducts//a; type=string; label=Room types for pricetables (CSV)
diff --git a/web/typo3conf/ext/ep_products/Configuration/TypoScript/setup.txt b/web/typo3conf/ext/ep_products/Configuration/TypoScript/setup.txt
index 5b76cacb..be4ba7e3 100644
--- a/web/typo3conf/ext/ep_products/Configuration/TypoScript/setup.txt
+++ b/web/typo3conf/ext/ep_products/Configuration/TypoScript/setup.txt
@@ -29,7 +29,7 @@ plugin.tx_epproducts {
         defaultSearchPageUid = {$plugin.tx_epproducts.settings.defaultSearchPageUid}
         defaultDetailPageUid = {$plugin.tx_epproducts.settings.defaultDetailPageUid}
         excludedConceptUids = {$plugin.tx_epproducts.settings.excludedConceptUids}
-        forcedConceptUid = {$plugin.tx_epproducts.settings.forcedConceptUid}
+        forcedConceptUids = {$plugin.tx_epproducts.settings.forcedConceptUids}
         noInfoConceptUids = {$plugin.tx_epproducts.settings.noInfoConceptUids}
         priceTableRoomTypes = {$plugin.tx_epproducts.settings.priceTableRoomTypes}
         searchLogIgnoreIps = {$plugin.tx_epproducts.settings.searchLogIgnoreIps}