diff --git a/core/bus-jackson/src/main/kotlin/io/holunda/polyflow/bus/jackson/JsonAutoDetectAnyVisibility.kt b/core/bus-jackson/src/main/kotlin/io/holunda/polyflow/bus/jackson/JsonAutoDetectAnyVisibility.kt
new file mode 100644
index 000000000..fc79c2fb9
--- /dev/null
+++ b/core/bus-jackson/src/main/kotlin/io/holunda/polyflow/bus/jackson/JsonAutoDetectAnyVisibility.kt
@@ -0,0 +1,9 @@
+package io.holunda.polyflow.bus.jackson
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect
+
+/**
+ * Allow serialization of all fields. (Also private fields!)
+ */
+@JsonAutoDetect(fieldVisibility = JsonAutoDetect.Visibility.ANY)
+class JsonAutoDetectAnyVisibility
diff --git a/core/datapool/datapool-core/pom.xml b/core/datapool/datapool-core/pom.xml
index a38ace6c2..6eca08da9 100644
--- a/core/datapool/datapool-core/pom.xml
+++ b/core/datapool/datapool-core/pom.xml
@@ -40,12 +40,11 @@
       <artifactId>dom4j</artifactId>
       <version>2.1.4</version>
     </dependency>
-
     <dependency>
       <groupId>io.holunda.polyflow</groupId>
       <artifactId>polyflow-bus-jackson</artifactId>
-      <scope>test</scope>
     </dependency>
+
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
diff --git a/core/datapool/datapool-core/src/main/kotlin/io/holunda/polyflow/datapool/core/DataPoolCoreAxonConfiguration.kt b/core/datapool/datapool-core/src/main/kotlin/io/holunda/polyflow/datapool/core/DataPoolCoreAxonConfiguration.kt
index d1acd8734..a3f6fd958 100755
--- a/core/datapool/datapool-core/src/main/kotlin/io/holunda/polyflow/datapool/core/DataPoolCoreAxonConfiguration.kt
+++ b/core/datapool/datapool-core/src/main/kotlin/io/holunda/polyflow/datapool/core/DataPoolCoreAxonConfiguration.kt
@@ -1,5 +1,7 @@
 package io.holunda.polyflow.datapool.core
 
+import com.fasterxml.jackson.databind.ObjectMapper
+import io.holunda.polyflow.bus.jackson.JsonAutoDetectAnyVisibility
 import io.holunda.polyflow.datapool.core.business.CreateOrUpdateCommandHandler
 import io.holunda.polyflow.datapool.core.business.DataEntryAggregate
 import io.holunda.polyflow.datapool.core.business.upcaster.DataEntryCreatedEventUpcaster
@@ -13,6 +15,7 @@ import org.axonframework.eventsourcing.SnapshotTriggerDefinition
 import org.axonframework.eventsourcing.Snapshotter
 import org.axonframework.eventsourcing.eventstore.EventStore
 import org.axonframework.messaging.annotation.ParameterResolverFactory
+import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.beans.factory.annotation.Qualifier
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty
 import org.springframework.context.annotation.Bean
@@ -98,5 +101,15 @@ class DataPoolCoreAxonConfiguration {
    */
   @Bean(DATA_ENTRY_CACHE)
   fun dataEntryCache(): Cache = WeakReferenceCache()
+
+  @Autowired
+  fun configureJackson(objectMapper: ObjectMapper) {
+    objectMapper.configurePolyflowJacksonObjectMapperForDatapool()
+  }
+}
+
+fun ObjectMapper.configurePolyflowJacksonObjectMapperForDatapool(): ObjectMapper {
+  addMixIn(DataEntryAggregate::class.java, JsonAutoDetectAnyVisibility::class.java)
+  return this
 }
 
diff --git a/core/datapool/datapool-core/src/test/kotlin/io/holunda/polyflow/datapool/core/business/DataEntryAggregateTest.kt b/core/datapool/datapool-core/src/test/kotlin/io/holunda/polyflow/datapool/core/business/DataEntryAggregateTest.kt
index b72642785..2f6d34f81 100644
--- a/core/datapool/datapool-core/src/test/kotlin/io/holunda/polyflow/datapool/core/business/DataEntryAggregateTest.kt
+++ b/core/datapool/datapool-core/src/test/kotlin/io/holunda/polyflow/datapool/core/business/DataEntryAggregateTest.kt
@@ -2,8 +2,10 @@ package io.holunda.polyflow.datapool.core.business
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import io.holunda.camunda.taskpool.api.business.*
+import io.holunda.polyflow.bus.jackson.JsonAutoDetectAnyVisibility
 import io.holunda.polyflow.bus.jackson.configurePolyflowJacksonObjectMapper
 import io.holunda.polyflow.datapool.core.DeletionStrategy
+import io.holunda.polyflow.datapool.core.configurePolyflowJacksonObjectMapperForDatapool
 import org.assertj.core.api.Assertions
 import org.assertj.core.api.Assertions.assertThat
 import org.axonframework.eventsourcing.AggregateDeletedException
@@ -373,7 +375,9 @@ class DataEntryAggregateTest {
   @Test
   fun `should serialize and deserialize an aggregate with data`() {
     // GIVEN an object mapper and a filled aggregate
-    val objectMapper = ObjectMapper().configurePolyflowJacksonObjectMapper()
+    val objectMapper = ObjectMapper()
+      .configurePolyflowJacksonObjectMapper()
+      .configurePolyflowJacksonObjectMapperForDatapool()
 
     val dataEntryAggregate = DataEntryAggregate().apply {
       on(