Adowrds Product group creation fails using Java api

[Sandip Mukherjee]

Hi Adwords Team,

I am trying to create Product group inside an adgroup using Java Api ProductPartitionTree.
In below sample, I try to create partition based on brand value.

AdWordsServicesInterface adWordsServices = AdWordsServices.getInstance();
            AdWordsSession adWordsSession = adwordsClientUtil.buildAdWordsSession("accountId");
            adWordsSession.setPartialFailure(false);
            ProductPartitionTree productPartitionTree =
                    ProductPartitionTree.createAdGroupTree(adWordsServices, adWordsSession, adGroupId);

            ProductPartitionNode rootNode = productPartitionTree.getRoot();

            rootNode = rootNode.asSubdivision();
            rootNode.
                    addChild(ProductDimensions.createBrand("brand_value"))
                    .asBiddableUnit();

            rootNode.addChild(ProductDimensions.createBrand(null))
                    .asExcludedUnit();

            List<AdGroupCriterionOperation> mutateOperations = productPartitionTree.getMutateOperations();

            AdGroupCriterionServiceInterface adGroupCriterionService
                    = adwordsClientUtil.getAdGroupCriterionService("accountId");

            AdGroupCriterionReturnValue adGroupCriterionResult =
                    adGroupCriterionService.mutate(
                            mutateOperations.toArray(new AdGroupCriterionOperation[0]));


But I get Below error for all mutate operation and the product group creation fails.
CAMPAIGN_TYPE_NOT_COMPATIBLE_WITH_PARTIAL_FAILURE

Can anyone from API team help on this please?

Thanks
Sandip