diff --git a/src/sdk/python/rtdip_sdk/pipelines/transformers/spark/mirico_json_to_pcdm.py b/src/sdk/python/rtdip_sdk/pipelines/transformers/spark/mirico_json_to_pcdm.py
index 7d77afd15..883955de5 100644
--- a/src/sdk/python/rtdip_sdk/pipelines/transformers/spark/mirico_json_to_pcdm.py
+++ b/src/sdk/python/rtdip_sdk/pipelines/transformers/spark/mirico_json_to_pcdm.py
@@ -24,6 +24,8 @@
     map_values,
     concat_ws,
     to_timestamp,
+    upper,
+    when,
 )
 from ...._sdk_utils.compare_versions import (
     _package_version_meets_minimum,
@@ -47,6 +49,7 @@ class MiricoJsonToPCDMTransformer(TransformerInterface):
         source_column_name="body",
         status_null_value="Good",
         change_type_value="insert"
+        tagname_field="test"
     )
 
     result = mirico_json_to_pcdm_transformer.transform()
@@ -57,6 +60,7 @@ class MiricoJsonToPCDMTransformer(TransformerInterface):
         source_column_name (str): Spark Dataframe column containing the OPC Publisher Json OPC UA data
         status_null_value (optional str): If populated, will replace 'Good' in the Status column with the specified value.
         change_type_value (optional str): If populated, will replace 'insert' in the ChangeType column with the specified value.
+        tagname_field (optional str): If populated, will add the specified field to the TagName column.
     """
 
     data: DataFrame
@@ -70,12 +74,14 @@ def __init__(
         source_column_name: str,
         status_null_value: str = "Good",
         change_type_value: str = "insert",
+        tagname_field: str = None,
     ) -> None:
         _package_version_meets_minimum("pyspark", "3.4.0")
         self.data = data
         self.source_column_name = source_column_name
         self.status_null_value = status_null_value
         self.change_type_value = change_type_value
+        self.tagname_field = tagname_field
 
     @staticmethod
     def system_type():
@@ -125,7 +131,23 @@ def transform(self) -> DataFrame:
             )
             .withColumn("Status", lit("Good"))
             .withColumn("ChangeType", lit("insert"))
-            .withColumn("TagName", concat_ws(":", *[col("SiteName"), col("key")]))
+            .withColumn(
+                "TagName",
+                when(
+                    lit(self.tagname_field).isNotNull(),
+                    concat_ws(
+                        ":",
+                        *[
+                            upper(lit(self.tagname_field)),
+                            concat_ws(
+                                "_", *[upper(col("SiteName")), upper(col("key"))]
+                            ),
+                        ]
+                    ),
+                ).otherwise(
+                    concat_ws("_", *[upper(col("SiteName")), upper(col("key"))])
+                ),
+            )
         )
         return df.select(
             "EventTime", "TagName", "Status", "Value", "ValueType", "ChangeType"
diff --git a/tests/sdk/python/rtdip_sdk/pipelines/transformers/spark/test_mirico_json_to_pcdm.py b/tests/sdk/python/rtdip_sdk/pipelines/transformers/spark/test_mirico_json_to_pcdm.py
index 645268c60..6798b00f2 100644
--- a/tests/sdk/python/rtdip_sdk/pipelines/transformers/spark/test_mirico_json_to_pcdm.py
+++ b/tests/sdk/python/rtdip_sdk/pipelines/transformers/spark/test_mirico_json_to_pcdm.py
@@ -35,7 +35,9 @@
 
 
 def test_mirico_json_to_pcdm(spark_session: SparkSession):
-    mirico_json_data = '{"timeStamp": "2023-11-03T16:21:16", "siteName": "20231016AMEPReleaseTesting1"}'
+    mirico_json_data = (
+        '{"timeStamp": "2023-11-03T16:21:16", "siteName": "test_site_name"}'
+    )
     mirico_df: DataFrame = spark_session.createDataFrame([{"body": mirico_json_data}])
 
     expected_schema = StructType(
@@ -52,7 +54,7 @@ def test_mirico_json_to_pcdm(spark_session: SparkSession):
     expected_data = [
         {
             "EventTime": EVENTTIME,
-            "TagName": "20231016AMEPReleaseTesting1:timeStamp",
+            "TagName": "TEST_SITE_NAME_TIMESTAMP",
             "Status": "Good",
             "Value": "2023-11-03T16:21:16",
             "ValueType": "string",
@@ -60,9 +62,9 @@ def test_mirico_json_to_pcdm(spark_session: SparkSession):
         },
         {
             "EventTime": EVENTTIME,
-            "TagName": "20231016AMEPReleaseTesting1:siteName",
+            "TagName": "TEST_SITE_NAME_SITENAME",
             "Status": "Good",
-            "Value": "20231016AMEPReleaseTesting1",
+            "Value": "test_site_name",
             "ValueType": "integer",
             "ChangeType": "insert",
         },