diff --git a/client/ayon_core/pipeline/create/creator_plugins.py b/client/ayon_core/pipeline/create/creator_plugins.py
index ad4b777db5..bb824f52e3 100644
--- a/client/ayon_core/pipeline/create/creator_plugins.py
+++ b/client/ayon_core/pipeline/create/creator_plugins.py
@@ -17,7 +17,7 @@ from ayon_core.pipeline.plugin_discover import (
     deregister_plugin_path
 )
 from ayon_core.pipeline.staging_dir import get_staging_dir_info, StagingDir
-from ayon_core.pipeline import is_supporting_product_base_type
+from ayon_core.pipeline.compatibility import is_supporting_product_base_type
 
 from .constants import DEFAULT_VARIANT_VALUE
 from .product_name import get_product_name
@@ -308,12 +308,15 @@ class BaseCreator(ABC):
         """Identifier of creator (must be unique).
 
         Default implementation returns plugin's product type.
+
         """
-
+        identifier = self.product_type
         if is_supporting_product_base_type():
-            return self.product_base_type
+            identifier = self.product_base_type
+            if self.product_type:
+                identifier = f"{identifier}.{self.product_type}"
+        return identifier
 
-        return self.product_type
 
     @property
     @abstractmethod
@@ -323,14 +326,19 @@ class BaseCreator(ABC):
         pass
 
     @property
-    @abstractmethod
-    def product_base_type(self):
+    def product_base_type(self) -> Optional[str]:
         """Base product type that plugin represents.
 
-        This is used to group products in UI.
-        """
+        Todo (antirotor): This should be required in future - it
+            should be made abstract then.
 
-        pass
+        Returns:
+            Optional[str]: Base product type that plugin represents.
+                If not set, it is assumed that the creator plugin is obsolete
+                and does not support product base type.
+
+        """
+        return None
 
     @property
     def project_name(self):
@@ -361,13 +369,14 @@ class BaseCreator(ABC):
 
         Default implementation use attributes in this order:
             - 'group_label' -> 'label' -> 'identifier'
-                Keep in mind that 'identifier' use 'product_type' by default.
+        
+        Keep in mind that 'identifier' uses 'product_base_type' by default.
 
         Returns:
             str: Group label that can be used for grouping of instances in UI.
-                Group label can be overridden by instance itself.
+                Group label can be overridden by the instance itself.
+    
         """
-
         if self._cached_group_label is None:
             label = self.identifier
             if self.group_label:
@@ -413,22 +422,26 @@ class BaseCreator(ABC):
         if product_type is None:
             product_type = self.product_type
 
-        if is_supporting_product_base_type() and not product_base_type:
-            if not self.product_base_type:
-                warn(
-                    f"Creator {self.identifier} does not support "
-                    "product base type. This will be required in future.",
-                    DeprecationWarning,
-                    stacklevel=2,
-                )
-                else:
-                    product_base_type = self.product_base_type
+        if (
+                is_supporting_product_base_type()
+                and not product_base_type
+                and not self.product_base_type
+        ):
+            warn(
+                f"Creator {self.identifier} does not support "
+                "product base type. This will be required in future.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        else:
+            product_base_type = self.product_base_type
 
         instance = CreatedInstance(
-            product_type,
-            product_name,
-            data,
+            product_type=product_type,
+            product_name=product_name,
+            data=data,
             creator=self,
+            product_base_type=product_base_type
         )
         self._add_instance_to_context(instance)
         return instance
diff --git a/client/ayon_core/pipeline/create/structures.py b/client/ayon_core/pipeline/create/structures.py
index d7ba6b9c24..389ce25961 100644
--- a/client/ayon_core/pipeline/create/structures.py
+++ b/client/ayon_core/pipeline/create/structures.py
@@ -3,6 +3,7 @@ import collections
 from uuid import uuid4
 import typing
 from typing import Optional, Dict, List, Any
+import warnings
 
 from ayon_core.lib.attribute_definitions import (
     AbstractAttrDef,
@@ -10,6 +11,9 @@ from ayon_core.lib.attribute_definitions import (
     serialize_attr_defs,
     deserialize_attr_defs,
 )
+
+from ayon_core.pipeline.compatibility import is_supporting_product_base_type
+
 from ayon_core.pipeline import (
     AYON_INSTANCE_ID,
     AVALON_INSTANCE_ID,
@@ -471,6 +475,7 @@ class CreatedInstance:
         "id",
         "instance_id",
         "productType",
+        "productBaseType",
         "creator_identifier",
         "creator_attributes",
         "publish_attributes"
@@ -490,7 +495,17 @@ class CreatedInstance:
         data: Dict[str, Any],
         creator: "BaseCreator",
         transient_data: Optional[Dict[str, Any]] = None,
+        product_base_type: Optional[str] = None
     ):
+
+        if is_supporting_product_base_type() and product_base_type is None:
+            warnings.warn(
+                f"Creator {creator!r} doesn't support "
+                "product base type. This will be required in future.",
+                DeprecationWarning,
+                stacklevel=2
+            )
+
         self._creator = creator
         creator_identifier = creator.identifier
         group_label = creator.get_group_label()
@@ -540,6 +555,11 @@ class CreatedInstance:
         self._data["id"] = item_id
         self._data["productType"] = product_type
         self._data["productName"] = product_name
+
+        if is_supporting_product_base_type():
+            data.pop("productBaseType", None)
+            self._data["productBaseType"] = product_base_type
+
         self._data["active"] = data.get("active", True)
         self._data["creator_identifier"] = creator_identifier