diff --git a/xyz-hub-service/src/main/java/com/here/xyz/hub/task/SpaceConnectorBasedHandler.java b/xyz-hub-service/src/main/java/com/here/xyz/hub/task/SpaceConnectorBasedHandler.java
index 36c379845..9721384e3 100644
--- a/xyz-hub-service/src/main/java/com/here/xyz/hub/task/SpaceConnectorBasedHandler.java
+++ b/xyz-hub-service/src/main/java/com/here/xyz/hub/task/SpaceConnectorBasedHandler.java
@@ -103,7 +103,7 @@ private static Future<Long> getMinTag(Marker marker, String space){
             )
             .compose(r -> {
                 /* Return min tag of this space */
-                return Future.succeededFuture((r.isPresent() ? r.getAsLong() : null));
+                return Future.succeededFuture((r.isPresent() ? Long.valueOf(r.getAsLong()) : null));
             });
   }
 
diff --git a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpace.java b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpace.java
index 2537cd870..a737f20bf 100644
--- a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpace.java
+++ b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpace.java
@@ -23,6 +23,7 @@
 import static com.here.xyz.jobs.steps.execution.db.Database.DatabaseRole.WRITER;
 import static com.here.xyz.jobs.steps.execution.db.Database.loadDatabase;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_EXECUTE;
+import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_RESUME;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.createQueryContext;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.infoLog;
 
@@ -30,6 +31,7 @@
 import com.here.xyz.connectors.ErrorResponseException;
 import com.here.xyz.events.GetFeaturesByGeometryEvent;
 import com.here.xyz.events.PropertiesQuery;
+import com.here.xyz.jobs.steps.execution.StepException;
 import com.here.xyz.jobs.steps.execution.db.Database;
 import com.here.xyz.jobs.steps.execution.db.Database.DatabaseRole;
 import com.here.xyz.jobs.steps.impl.SpaceBasedStep;
@@ -328,8 +330,7 @@ long _getCreatedVersion() {
     return 0; //FIXME: Rather throw an exception here?
   }
 
-  @Override
-  public void execute() throws Exception {
+  private void _execute(boolean resumed) throws Exception {
     setVersion(_getCreatedVersion());
 
     logger.info("[{}] Using fetched version {}", getGlobalStepId(), getVersion());
@@ -346,10 +347,20 @@ public void execute() throws Exception {
     int threadId = getThreadInfo()[0],
         threadCount = getThreadInfo()[1];
 
-     infoLog(STEP_EXECUTE, this, "Start ImlCopy thread number: " + threadId + " / " + threadCount);
+     infoLog(STEP_EXECUTE, this, "Start ImlCopy thread number: " + threadId + " / " + threadCount + (resumed ? " - resumed" : ""));
      runReadQueryAsync(buildCopySpaceQuery(sourceSpace,targetSpace,threadCount, threadId), targetDb, calculateNeededAcus()/threadCount, true);
   }
 
+  @Override
+  public void execute() throws Exception {
+    try { _execute(false); }
+    catch(Exception e)
+    {
+      String errMsg = String.format("Error iml-copy chunk-id %d#%d", getThreadInfo()[0], getThreadInfo()[1] );
+      throw new StepException(errMsg, e).withRetryable( true ); // always retryable at first place
+    }
+  }
+
   @Override
   protected void onAsyncSuccess() throws WebClientException, SQLException, TooManyResourcesClaimed, IOException {
     logger.info("[{}] AsyncSuccess Copy {} -> {}", getGlobalStepId(), getSpaceId() , getTargetSpaceId());
@@ -364,8 +375,8 @@ protected void onStateCheck() {
 
   @Override
   public void resume() throws Exception {
-    //@TODO: Implement
-    logger.info("resume was called");
+      infoLog(STEP_RESUME, this, "resume was called");
+      _execute(true);
   }
 
   private String _getRootTableName(Space targetSpace) throws SQLException {
diff --git a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePost.java b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePost.java
index d049ef638..4660f2c2c 100644
--- a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePost.java
+++ b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePost.java
@@ -22,6 +22,7 @@
 import static com.here.xyz.jobs.steps.Step.Visibility.USER;
 import static com.here.xyz.jobs.steps.execution.LambdaBasedStep.ExecutionMode.SYNC;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_EXECUTE;
+import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_RESUME;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.infoLog;
 
 import com.fasterxml.jackson.annotation.JsonView;
@@ -139,10 +140,10 @@ private FeatureStatistics getCopiedFeatures(long fetchedVersion) throws SQLExcep
 
     SQLQuery incVersionSql = new SQLQuery(
         """
-              select count(1), coalesce( sum( (coalesce(pg_column_size(jsondata),0) + coalesce(pg_column_size(geo),0))::bigint ), 0::bigint )
-              from ${schema}.${table} 
-              where version = ${{fetchedVersion}} 
-            """)
+         select count(1), coalesce( sum( (coalesce(pg_column_size(jsondata),0) + coalesce(pg_column_size(geo),0))::bigint ), 0::bigint )
+         from ${schema}.${table} 
+         where version = ${{fetchedVersion}} 
+        """)
         .withVariable("schema", targetSchema)
         .withVariable("table", targetTable)
         .withQueryFragment("fetchedVersion", "" + fetchedVersion);
@@ -169,8 +170,9 @@ private void writeContentUpdatedAtTs() throws WebClientException {
         else {
           logger.error("[{}] could not write contentUpadtedAt to space {}", getGlobalStepId(), getSpaceId());
           throw new StepException("Error while updating the final target settings.", e)
-              .withRetryable(e instanceof ErrorResponseException responseException
-                  && responseException.getErrorResponse().statusCode() == 504);
+              .withRetryable(   e instanceof ErrorResponseException responseException
+                             && responseException.getErrorResponse().statusCode() == 504
+                            );
         }
       }
   }
@@ -184,7 +186,7 @@ private void sleepWithIncr(int attempt) {
 
   @Override
   public void resume() throws Exception {
-    //TODO: Implement
-    logger.info("resume was called");
+    infoLog(STEP_RESUME, this, "resume was called");
+    execute();
   }
 }
diff --git a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePre.java b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePre.java
index 867757d16..7cd41a5a8 100644
--- a/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePre.java
+++ b/xyz-jobs/xyz-job-steps/src/main/java/com/here/xyz/jobs/steps/impl/transport/CopySpacePre.java
@@ -22,13 +22,16 @@
 import static com.here.xyz.jobs.steps.Step.Visibility.SYSTEM;
 import static com.here.xyz.jobs.steps.execution.LambdaBasedStep.ExecutionMode.SYNC;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_EXECUTE;
+import static com.here.xyz.jobs.steps.impl.transport.TransportTools.Phase.STEP_RESUME;
 import static com.here.xyz.jobs.steps.impl.transport.TransportTools.infoLog;
 
+import com.here.xyz.jobs.steps.execution.StepException;
 import com.here.xyz.jobs.steps.impl.SpaceBasedStep;
 import com.here.xyz.jobs.steps.outputs.CreatedVersion;
 import com.here.xyz.jobs.steps.resources.Load;
 import com.here.xyz.jobs.steps.resources.TooManyResourcesClaimed;
 import com.here.xyz.util.db.SQLQuery;
+import com.here.xyz.util.web.XyzWebClient.ErrorResponseException;
 import com.here.xyz.util.web.XyzWebClient.WebClientException;
 import java.sql.SQLException;
 import java.util.List;
@@ -87,12 +90,29 @@ public ExecutionMode getExecutionMode() {
     return SYNC;
   }
 
+  private void _execute(boolean resumed) throws Exception {
+    infoLog(STEP_EXECUTE, this, String.format("Fetch next version for %s%s", getSpaceId(), resumed ? " - resumed" : "") );
+    long nextVersionToUse = 0;
+    try {
+     nextVersionToUse = setVersionToNextInSequence();
+    } 
+    catch( WebClientException e ) {
+     // retryable in case of webclient error
+     throw new StepException("Error retrieving next version to use", e)
+               .withRetryable(  e instanceof ErrorResponseException responseException
+                              && responseException.getErrorResponse().statusCode() == 504
+                             );
+    }
+    
+    registerOutputs(List.of(new CreatedVersion().withVersion(nextVersionToUse)), VERSION);
+  }
+
   @Override
   public void execute() throws Exception {
-    infoLog(STEP_EXECUTE, this, "Fetch next version for " + getSpaceId());
-    registerOutputs(List.of(new CreatedVersion().withVersion(setVersionToNextInSequence())), VERSION);
+    _execute(false);
   }
 
+
   private long setVersionToNextInSequence() throws SQLException, TooManyResourcesClaimed, WebClientException {
     //TODO: Remove the following duplicated code by simply re-using GetNextVersion QueryRunner
     String targetSchema = getSchema(db()),
@@ -112,7 +132,8 @@ private long setVersionToNextInSequence() throws SQLException, TooManyResourcesC
 
   @Override
   public void resume() throws Exception {
-    //TODO: Implement
-    logger.info("resume was called");
+   
+    infoLog(STEP_RESUME, this, "resume was called");
+    _execute(true);
   }
 }