diff --git a/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java b/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
index aa5c35b9039..f6086e6c8e1 100644
--- a/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
+++ b/Kitodo/src/main/java/org/kitodo/production/services/data/ProcessService.java
@@ -32,6 +32,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.math.BigInteger;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
@@ -653,7 +654,7 @@ public List<ProcessDTO> findByAnything(String searchQuery) throws DataException
                 ProcessTypeField.PROJECT_TITLE.getKey(),
                 ProcessTypeField.COMMENTS.getKey(),
                 ProcessTypeField.WIKI_FIELD.getKey(),
-                ProcessTypeField.TEMPLATE_TITLE.getKey()).operator(Operator.AND);
+                ProcessTypeField.TEMPLATE_TITLE.getKey()).operator(Operator.AND).lenient(true);
 
         if (searchQuery.matches("^\\d*$")) {
             multiMatchQueryForProcessFields.fields().put(ProcessTypeField.ID.getKey(), 1.0f);
@@ -810,7 +811,7 @@ public List<ProcessDTO> findLinkableParentProcesses(String searchInput, int proj
         BoolQueryBuilder processQuery = new BoolQueryBuilder()
                 .should(createSimpleWildcardQuery(ProcessTypeField.TITLE.getKey(), searchInput));
         if (searchInput.matches("\\d*")) {
-            processQuery.should(new MatchQueryBuilder(ProcessTypeField.ID.getKey(), searchInput));
+            processQuery.should(new MatchQueryBuilder(ProcessTypeField.ID.getKey(), searchInput).lenient(true));
         }
         BoolQueryBuilder query = new BoolQueryBuilder().must(processQuery)
                 .must(new MatchQueryBuilder(ProcessTypeField.PROJECT_ID.getKey(), projectId))
@@ -2113,6 +2114,8 @@ private Map<String, Object> iterateOverJsonObject(JSONObject xmlJSONObject) {
             Object value = xmlJSONObject.get(key);
             if (value instanceof String || value instanceof Integer) {
                 json.put(prepareKey(key), value);
+            } else if (value instanceof Long || value instanceof BigInteger) {
+                json.put(prepareKey(key), value.toString());
             } else if (value instanceof JSONObject) {
                 JSONObject jsonObject = (JSONObject) value;
                 Map<String, Object> map = iterateOverJsonObject(jsonObject);
diff --git a/Kitodo/src/test/java/org/kitodo/production/services/data/ProcessServiceIT.java b/Kitodo/src/test/java/org/kitodo/production/services/data/ProcessServiceIT.java
index 7dc7b63b582..2b654096ea7 100644
--- a/Kitodo/src/test/java/org/kitodo/production/services/data/ProcessServiceIT.java
+++ b/Kitodo/src/test/java/org/kitodo/production/services/data/ProcessServiceIT.java
@@ -229,6 +229,16 @@ public void shouldFindByMetadataContent() throws DataException {
         assertEquals(processNotFound, 1, processService.findByAnything("SecondMetaShort").size());
     }
 
+    @Test
+    public void shouldFindByLongNumberInMetadata() throws DataException {
+        assertEquals(processNotFound, 1, processService
+                .findByMetadata(Collections.singletonMap("CatalogIDDigital", "999999999999999991")).size());
+        assertEquals(processNotFound, 1, processService
+                .findByMetadata(Collections.singletonMap("CatalogIDDigital", "991022551489706476")).size());
+        assertEquals(processNotFound, 1, processService
+                .findByMetadata(Collections.singletonMap("CatalogIDDigital", "999999999999999999999999991")).size());
+    }
+
     @Test
     public void shouldFindProcessWithUnderscore() throws DataException, DAOException {
         Project project = ServiceManager.getProjectService().getById(1);
diff --git a/Kitodo/src/test/resources/metadata/5/meta.xml b/Kitodo/src/test/resources/metadata/5/meta.xml
index 055d31fc1fb..045a27689db 100644
--- a/Kitodo/src/test/resources/metadata/5/meta.xml
+++ b/Kitodo/src/test/resources/metadata/5/meta.xml
@@ -15,6 +15,9 @@
                     <kitodo:metadata name="TitleDocMain">Second process</kitodo:metadata>
                     <kitodo:metadata name="TitleDocMainShort">Second</kitodo:metadata>
                     <kitodo:metadata name="TSL_ATS">Proc</kitodo:metadata>
+                    <kitodo:metadata name="CatalogIDDigital">999999999999999991</kitodo:metadata>
+                    <kitodo:metadata name="CatalogIDDigital">991022551489706476</kitodo:metadata>
+                    <kitodo:metadata name="CatalogIDDigital">999999999999999999999999991</kitodo:metadata>
                 </kitodo:kitodo>
             </mets:xmlData>
         </mets:mdWrap>