diff --git a/src/main/java/eu/openaire/urls_controller/services/BulkImportServiceImpl.java b/src/main/java/eu/openaire/urls_controller/services/BulkImportServiceImpl.java
index 6077937..c26e813 100644
--- a/src/main/java/eu/openaire/urls_controller/services/BulkImportServiceImpl.java
+++ b/src/main/java/eu/openaire/urls_controller/services/BulkImportServiceImpl.java
@@ -134,9 +134,9 @@ public class BulkImportServiceImpl implements BulkImportService {
         bulkImportReport.addEvent(msg);
         fileUtils.writeToFile(bulkImportReportLocation, bulkImportReport.getJsonReport(), false);
 
-        // If we have "provenance" = "springerImport", then we have to load the file-id-mappings.
+        // load the file-id-mappings if defined
         final ConcurrentHashMap<String, String> idMappings;
-        if ( provenance.equals("springerImport") ) {
+        if ( bulkImportSource.getIdMappingFilePath() != null ) {
             idMappings = jsonUtils.loadIdMappings(bulkImportDirName + bulkImportSource.getIdMappingFilePath(), numOfFiles, additionalLoggingMsg);
             if ( idMappings == null ) {
                 String errorMsg = "Could not load the file-id-mappings! As a result, the OpenAIRE-IDs cannot be generated!";
@@ -441,7 +441,7 @@ public class BulkImportServiceImpl implements BulkImportService {
         String fileLocation = docFileData.getLocation();
         FileLocationData fileLocationData = null;
         String fileId;
-        if ( provenance.equals("springerImport") ) {
+        if ( idMappings != null ) {
             String relativeFileLocation = StringUtils.replace(fileLocation, bulkImportDirName, "", 1);
             if ( (fileId = idMappings.get(relativeFileLocation)) == null ) {    // Take the "DOI" id matching to this file-ID.
                 logger.error("File '" + fileLocation + "' could not have its relative-path (" + relativeFileLocation + ") mapped with an ID!" + additionalLoggingMsg);