fix: add missing customer code pattern

public/typo3conf/ext/ep_products/Classes/Service/DateImportService.php

@@ -78,7 +78,7 @@ class DateImportService implements SingletonInterface, LoggerAwareInterface
      * trip type markers in front of the travel code's trailing date mean
      * end-customer travel.
      */
-    const END_CUSTOMER_CODE_PATTERN = '/(?:MP|WE|KT|PM|MW)\d{6}$/';
+    const END_CUSTOMER_CODE_PATTERN = '/(?:MP|WE|KT|PM|MW|FA)\d{6}$/';
 
     /**
      * 'Leistungen Personal' occurs in no export so far, so its id is unknown and