diff --git a/src/deadline/nuke_submitter/assets.py b/src/deadline/nuke_submitter/assets.py
index 4a4cd46..8c53261 100644
--- a/src/deadline/nuke_submitter/assets.py
+++ b/src/deadline/nuke_submitter/assets.py
@@ -95,27 +95,24 @@ def get_scene_asset_references() -> AssetReferences:
                 for search_path in ocio_config_search_paths:
                     asset_references.input_directories.add(search_path)
             else:
-                nuke.alert(
-                    "OCIO config file specified(%s) is not an existing file." % ocio_config_path
+                raise DeadlineOperationError(
+                    "OCIO config file specified(%s) is not an existing file. Please check and update the config file before proceeding."
+                    % ocio_config_path
                 )
 
     return asset_references
 
 
 def get_ocio_config_path() -> Optional[str]:
-    ocio_config_path = None
-
     # if using a custom OCIO environment variable
     if nuke_ocio.is_env_config_enabled():
-        ocio_config_path = nuke_ocio.get_env_config_path()
+        return nuke_ocio.get_env_config_path()
+    elif nuke_ocio.is_custom_config_enabled():
+        return nuke_ocio.get_custom_config_path()
+    elif nuke_ocio.is_stock_config_enabled():
+        return nuke_ocio.get_stock_config_path()
     else:
-        print("here?")
-        # if using a custom OCIO config file
-        if nuke_ocio.is_custom_config_enabled():
-            ocio_config_path = nuke_ocio.get_custom_config_path()
-        elif nuke_ocio.is_stock_config_enabled():
-            ocio_config_path = nuke_ocio.get_stock_config_path()
-    return ocio_config_path
+        return None
 
 
 def find_all_write_nodes() -> set:
diff --git a/src/deadline/nuke_submitter/deadline_submitter_for_nuke.py b/src/deadline/nuke_submitter/deadline_submitter_for_nuke.py
index 8e1eac5..36b866e 100644
--- a/src/deadline/nuke_submitter/deadline_submitter_for_nuke.py
+++ b/src/deadline/nuke_submitter/deadline_submitter_for_nuke.py
@@ -128,19 +128,7 @@ def _add_ocio_path_to_job_template(job_template: dict[str, Any]) -> None:
         0,
         {
             "name": "Add OCIO Path to Environment Variable",
-            "script": {
-                "actions": {"onEnter": {"command": "{{Env.File.Enter}}"}},
-                "embeddedFiles": [
-                    {
-                        "name": "Enter",
-                        "type": "TEXT",
-                        "runnable": True,
-                        "data": """#!/bin/bash
-    echo 'openjd_env: OCIO={{Param.OCIOConfigPath}}'
-    """,
-                    }
-                ],
-            },
+            "variables": {"OCIO": "{{Param.OCIOConfigPath}}"},
         },
     )
 
@@ -289,8 +277,12 @@ def _get_parameter_values(
     # Set the OCIO config path value
     if nuke_ocio.is_OCIO_enabled():
         ocio_config_path = get_ocio_config_path()
-        parameter_values.append({"name": "OCIOConfigPath", "value": ocio_config_path})
-
+        if ocio_config_path:
+            parameter_values.append({"name": "OCIOConfigPath", "value": ocio_config_path})
+        else:
+            raise DeadlineOperationError(
+                "OCIO is enabled but OCIO config file is not specified. Please check and update the config file before proceeding."
+            )
     if settings.include_adaptor_wheels:
         wheels_path = str(Path(__file__).parent.parent.parent.parent / "wheels")
         parameter_values.append({"name": "AdaptorWheels", "value": wheels_path})
diff --git a/src/deadline/nuke_util/ocio.py b/src/deadline/nuke_util/ocio.py
index 96cbdbd..7c7ed54 100644
--- a/src/deadline/nuke_util/ocio.py
+++ b/src/deadline/nuke_util/ocio.py
@@ -21,7 +21,7 @@ def get_env_config_path() -> Optional[str]:
 
 
 def is_stock_config_enabled() -> bool:
-    """True if the script is using a custom OCIO config"""
+    """True if the script is using a default OCIO config"""
     return (
         nuke.root().knob("colorManagement").value() == "OCIO"
         and nuke.root().knob("OCIO_config").value() != "custom"
diff --git a/test/unit/deadline_submitter_for_nuke/test_ocio.py b/test/unit/deadline_submitter_for_nuke/test_ocio.py
index 5c2c9f1..0478fd6 100644
--- a/test/unit/deadline_submitter_for_nuke/test_ocio.py
+++ b/test/unit/deadline_submitter_for_nuke/test_ocio.py
@@ -26,19 +26,7 @@ def test_add__dir_to_job_template():
 
     expected_environment = {
         "name": "Add OCIO Path to Environment Variable",
-        "script": {
-            "actions": {"onEnter": {"command": "{{Env.File.Enter}}"}},
-            "embeddedFiles": [
-                {
-                    "name": "Enter",
-                    "type": "TEXT",
-                    "runnable": True,
-                    "data": """#!/bin/bash
-    echo 'openjd_env: OCIO={{Param.OCIOConfigPath}}'
-    """,
-                }
-            ],
-        },
+        "variables": {"OCIO": "{{Param.OCIOConfigPath}}"},
     }
 
     assert len(job_template["jobEnvironments"]) == 1