diff --git a/modules/apim-adapter/src/main/java/com/axway/apim/adapter/apis/APIManagerAPIAdapter.java b/modules/apim-adapter/src/main/java/com/axway/apim/adapter/apis/APIManagerAPIAdapter.java
index 01fe70b4..7235b7b7 100644
--- a/modules/apim-adapter/src/main/java/com/axway/apim/adapter/apis/APIManagerAPIAdapter.java
+++ b/modules/apim-adapter/src/main/java/com/axway/apim/adapter/apis/APIManagerAPIAdapter.java
@@ -567,8 +567,10 @@ public API createAPIProxy(API api) throws AppException {
     public API updateAPIProxy(API api) throws AppException {
         LOG.debug("Updating API-Proxy: {} {} ( {} )", api.getName(), api.getVersion(), api.getId());
         mapper.setSerializationInclusion(Include.NON_NULL);
+        FilterProvider filter = new SimpleFilterProvider().setFailOnUnknownId(false);
         mapper.registerModule(new SimpleModule().setSerializerModifier(new APIImportSerializerModifier()));
         mapper.registerModule(new SimpleModule().setSerializerModifier(new PolicySerializerModifier(false)));
+        mapper.setFilterProvider(filter);
         translateMethodIds(api, api.getId(), METHOD_TRANSLATION.AS_ID);
         try {
             URI uri = new URIBuilder(cmd.getAPIManagerURL()).setPath(cmd.getApiBasepath() + PROXIES + api.getId()).build();
diff --git a/modules/apim-adapter/src/test/java/com/axway/apim/adapter/apis/APIManagerAPIAdapterTest.java b/modules/apim-adapter/src/test/java/com/axway/apim/adapter/apis/APIManagerAPIAdapterTest.java
index 49bc0202..cc114fc3 100644
--- a/modules/apim-adapter/src/test/java/com/axway/apim/adapter/apis/APIManagerAPIAdapterTest.java
+++ b/modules/apim-adapter/src/test/java/com/axway/apim/adapter/apis/APIManagerAPIAdapterTest.java
@@ -810,10 +810,9 @@ public void updateAPIProxyWithBasicAuthEmptyPassword() throws IOException {
         System.out.println(baseConfig.getAuthenticationProfiles());
 
         ObjectMapper objectMapper = new ObjectMapper();
-        String[] serializeAllExcept = apiManagerAPIAdapter.getSerializeAllExcept();
+
         objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
-        FilterProvider filter = new SimpleFilterProvider().setDefaultFilter(
-            SimpleBeanPropertyFilter.serializeAllExcept(serializeAllExcept));
+        FilterProvider filter = new SimpleFilterProvider().setFailOnUnknownId(false);
         objectMapper.setFilterProvider(filter);
 
         System.out.println(objectMapper.writeValueAsString(baseConfig));