diff --git a/client/ayon_core/plugins/publish/integrate_traits.py b/client/ayon_core/plugins/publish/integrate_traits.py
index de1bd5fc16..72a7ddd479 100644
--- a/client/ayon_core/plugins/publish/integrate_traits.py
+++ b/client/ayon_core/plugins/publish/integrate_traits.py
@@ -918,8 +918,7 @@ class IntegrateTraits(pyblish.api.InstancePlugin):
 
             template_item.template_data["frame"] = frame
             template_item.template_data["ext"] = (
-                file_loc.file_path.suffix
-            )
+                file_loc.file_path.suffix.lstrip("."))
             template_filled = path_template_object.format_strict(
                 template_item.template_data
             )
@@ -1026,7 +1025,7 @@ class IntegrateTraits(pyblish.api.InstancePlugin):
             template_item.template_object["path"]
         )
         template_item.template_data["ext"] = (
-            representation.get_trait(FileLocation).file_path.suffix.rstrip(".")
+            representation.get_trait(FileLocation).file_path.suffix.lstrip(".")
         )
         template_item.template_data.pop("frame", None)
         with contextlib.suppress(MissingTraitError):
@@ -1110,10 +1109,17 @@ class IntegrateTraits(pyblish.api.InstancePlugin):
             path (Path): Destination url of published file.
             anatomy (Anatomy): Project anatomy part from instance.
 
+        Raises:
+            PublishError: If file does not exist.
+
         Returns:
             dict[str, Any]: Representation file info dictionary.
 
         """
+        if not path.exists():
+            msg = f"File '{path}' does not exist."
+            raise PublishError(msg)
+
         return {
             "id": create_entity_id(),
             "name": path.name,
@@ -1131,6 +1137,9 @@ class IntegrateTraits(pyblish.api.InstancePlugin):
         ) -> list[dict[str, str]]:
         """Get legacy files for a given representation.
 
+        This expects the file to exist - it must run after the transfer
+        is done.
+
         Returns:
             list: List of legacy files.
 
diff --git a/tests/client/ayon_core/plugins/publish/test_integrate_traits.py b/tests/client/ayon_core/plugins/publish/test_integrate_traits.py
index 252556fe29..98f02bdff6 100644
--- a/tests/client/ayon_core/plugins/publish/test_integrate_traits.py
+++ b/tests/client/ayon_core/plugins/publish/test_integrate_traits.py
@@ -12,6 +12,11 @@ import pytest
 from ayon_api.operations import (
     OperationsSession,
 )
+
+from ayon_core.lib.file_transaction import (
+    FileTransaction,
+)
+
 from ayon_core.pipeline.anatomy import Anatomy
 from ayon_core.pipeline.traits import (
     Bundle,
@@ -30,9 +35,20 @@ from ayon_core.pipeline.version_start import get_versioning_start
 
 # Tagged,
 # TemplatePath,
-from ayon_core.plugins.publish.integrate_traits import IntegrateTraits
+from ayon_core.plugins.publish.integrate_traits import (
+    IntegrateTraits,
+    TransferItem,
+)
+
 from ayon_core.settings import get_project_settings
 
+from ayon_api.operations import (
+    OperationsSession,
+    new_product_entity,
+    new_representation_entity,
+    new_version_entity,
+)
+
 if TYPE_CHECKING:
     import pytest_ayon
 
@@ -315,6 +331,9 @@ def test_get_transfers_from_representation(
         mock_context: pyblish.api.Context) -> None:
     """Test get_transfers_from_representation.
 
+    This tests getting actual transfers from the representations and
+    also the legacy files.
+
     Todo: This test will benefit massively from a proper mocking of the
         context. We need to parametrize the test with different
         representations and test the output of the function.
@@ -332,4 +351,22 @@ def test_get_transfers_from_representation(
     assert len(transfers) == 22
 
     for transfer in transfers:
-        ...
+        assert transfer.checksum == TransferItem.get_checksum(
+            transfer.source)
+
+    file_transactions = FileTransaction(
+        # Enforce unique transfers
+        allow_queue_replacements=False)
+
+    for transfer in transfers:
+        file_transactions.add(
+            transfer.source.as_posix(),
+            transfer.destination.as_posix(),
+            mode=FileTransaction.MODE_COPY,
+        )
+
+    file_transactions.process()
+
+    for representation in representations:
+        files = integrator._get_legacy_files_for_representation(  # noqa: SLF001
+            transfers, representation, anatomy=instance.data["anatomy"])