diff --git a/ydb/core/persqueue/partition.cpp b/ydb/core/persqueue/partition.cpp
index 00d69da63098..428edbcf0c9d 100644
--- a/ydb/core/persqueue/partition.cpp
+++ b/ydb/core/persqueue/partition.cpp
@@ -2757,7 +2757,7 @@ void TPartition::EndChangePartitionConfig(NKikimrPQ::TPQTabletConfig&& config,
 
 TString TPartition::GetKeyConfig() const
 {
-    return Sprintf("_config_%u", Partition.OriginalPartitionId);
+    return Sprintf("_config_%u", Partition.InternalPartitionId);
 }
 
 void TPartition::ChangePlanStepAndTxId(ui64 step, ui64 txId)
diff --git a/ydb/core/persqueue/partition_init.cpp b/ydb/core/persqueue/partition_init.cpp
index 8031f78f7d85..3964be436c81 100644
--- a/ydb/core/persqueue/partition_init.cpp
+++ b/ydb/core/persqueue/partition_init.cpp
@@ -200,6 +200,11 @@ void TInitConfigStep::Handle(TEvKeyValue::TEvResponse::TPtr& ev, const TActorCon
         Y_ABORT("bad status");
     };
 
+    // There should be no consumers in the configuration of the background partition. When creating a partition,
+    // the PQ tablet specifically removes all consumer settings from the config.
+    Y_ABORT_UNLESS(!Partition()->IsSupportive() ||
+                   (Partition()->Config.GetConsumers().empty() && Partition()->TabletConfig.GetConsumers().empty()));
+
     Partition()->PartitionConfig = GetPartitionConfig(Partition()->Config, Partition()->Partition.OriginalPartitionId);
     Partition()->PartitionGraph = MakePartitionGraph(Partition()->Config);
 
diff --git a/ydb/core/persqueue/pq_impl.cpp b/ydb/core/persqueue/pq_impl.cpp
index bf6560bfbd63..1ccd2c0f8272 100644
--- a/ydb/core/persqueue/pq_impl.cpp
+++ b/ydb/core/persqueue/pq_impl.cpp
@@ -865,6 +865,7 @@ NKikimrPQ::TPQTabletConfig TPersQueue::MakeSupportivePartitionConfig() const
     partitionConfig.MutableReadRuleServiceTypes()->Clear();
     partitionConfig.MutableReadRuleVersions()->Clear();
     partitionConfig.MutableReadRuleGenerations()->Clear();
+    partitionConfig.MutableConsumers()->Clear();
 
     return partitionConfig;
 }