diff --git a/search-commons/src/main/java/no/unit/nva/search2/ImportCandidateQuery.java b/search-commons/src/main/java/no/unit/nva/search2/ImportCandidateQuery.java
index 5fddd3b14..e51779a15 100644
--- a/search-commons/src/main/java/no/unit/nva/search2/ImportCandidateQuery.java
+++ b/search-commons/src/main/java/no/unit/nva/search2/ImportCandidateQuery.java
@@ -208,7 +208,8 @@ protected void setValue(String key, String value) {
                 case FIELDS -> query.setQueryValue(qpKey, expandFields(value));
                 case SORT -> addSortQuery(value);
                 case SORT_ORDER -> addSortOrderQuery(value);
-                case PUBLISHED_BEFORE, PUBLISHED_SINCE,
+                case ADDITIONAL_IDENTIFIERS, ADDITIONAL_IDENTIFIERS_NOT, ADDITIONAL_IDENTIFIERS_SHOULD,
+                    PUBLISHED_BEFORE, PUBLISHED_SINCE,
                     CATEGORY, CATEGORY_NOT, CATEGORY_SHOULD,
                     COLLABORATION_TYPE,
                     DOI, DOI_NOT, DOI_SHOULD,
diff --git a/search-commons/src/main/java/no/unit/nva/search2/model/ParameterKeyImportCandidate.java b/search-commons/src/main/java/no/unit/nva/search2/model/ParameterKeyImportCandidate.java
index 22071993a..43fb999f2 100644
--- a/search-commons/src/main/java/no/unit/nva/search2/model/ParameterKeyImportCandidate.java
+++ b/search-commons/src/main/java/no/unit/nva/search2/model/ParameterKeyImportCandidate.java
@@ -33,6 +33,9 @@
 public enum ParameterKeyImportCandidate implements ParameterKey {
     INVALID(TEXT),
     // Parameters converted to Lucene query
+    ADDITIONAL_IDENTIFIERS(KEYWORD, MUST, Constants.ADDITIONAL_IDENTIFIERS_VALUE_KEYWORD),
+    ADDITIONAL_IDENTIFIERS_NOT(KEYWORD, MUST_NOT, Constants.ADDITIONAL_IDENTIFIERS_VALUE_KEYWORD),
+    ADDITIONAL_IDENTIFIERS_SHOULD(TEXT, SHOULD, Constants.ADDITIONAL_IDENTIFIERS_VALUE_KEYWORD),
     CATEGORY(KEYWORD, Constants.ENTITY_DESCRIPTION_REFERENCE_PUBLICATION_INSTANCE_TYPE),
     CATEGORY_NOT(KEYWORD, MUST_NOT, Constants.ENTITY_DESCRIPTION_REFERENCE_PUBLICATION_INSTANCE_TYPE),
     CATEGORY_SHOULD(TEXT, SHOULD, Constants.ENTITY_DESCRIPTION_REFERENCE_PUBLICATION_INSTANCE_TYPE),
@@ -201,5 +204,7 @@ private static class Constants {
         public static final String PUBLISHED_DATE = "publishedDate.year";
         public static final String PUBLISHER = "publisher.id.keyword";
         public static final String RESOURCE_OWNER = "owner.keyword";
+        public static final String ADDITIONAL_IDENTIFIERS_VALUE_KEYWORD = "additionalIdentifiers.value.keyword";
+
     }
 }
\ No newline at end of file