diff --git a/sample-management-custom/caosdb-server/scripting/bin/sample_helpers/sample_upload_get_event.py b/sample-management-custom/caosdb-server/scripting/bin/sample_helpers/sample_upload_get_event.py
index c15df79805965ec982012775a113704979ecdf1b..19495418e9918265307de0e59789ae1e962ffd4e 100644
--- a/sample-management-custom/caosdb-server/scripting/bin/sample_helpers/sample_upload_get_event.py
+++ b/sample-management-custom/caosdb-server/scripting/bin/sample_helpers/sample_upload_get_event.py
@@ -85,6 +85,7 @@ def add_event_to_sample(sample: db.Record, data: pd.Series) -> db.Record:
 
     # only add if there was any event data at all:
     if len(event.properties) > 0:
+
         sample = update_property(sample, event_rt.id, event, property_name=event_rt.name)
 
     return sample
@@ -108,39 +109,39 @@ def _create_position(mode: str, lat: float, lng: float, ele: float):
 
 def _perform_sanity_checks(sample, data):
 
-    if (get_column_header_name("end_date") in data and
-            return_value_if_not_none(data[get_column_header_name("end_date")]) is not None):
-        if (get_column_header_name("start_date") not in data or
-                return_value_if_not_none(data[get_column_header_name("start_date")]) is None):
+    if (get_column_header_name("end_date_prop") in data and
+            return_value_if_not_none(data[get_column_header_name("end_date_prop")]) is not None):
+        if (get_column_header_name("start_date_prop") not in data or
+                return_value_if_not_none(data[get_column_header_name("start_date_prop")]) is None):
             raise DataInconsistencyError(
                 f"Sample with {get_entity_name('entity_id')} {sample.id} has a "
-                f"{get_column_header_name('end_date')} but no valid "
-                f"{get_column_header_name('start_date')}."
+                f"{get_column_header_name('end_date_prop')} but no valid "
+                f"{get_column_header_name('start_date_prop')}."
             )
 
     for name in ["start", "stop"]:
-        bool_list = [get_column_header_name(f"{val}_{name}") in data for val in [
-            "latitude", "longitude", "elevation"]]
+        bool_list = [get_column_header_name(f"{val} {name}") in data for val in [
+            "Latitude", "Longitude", "Elevation"]]
         raise_error = False
         if any(bool_list):
             if not all(bool_list):
                 raise_error = True
-            elif any([return_value_if_not_none(data[get_column_header_name(f"{val}_{name}")]) is None for val in ["latitude", "longitude", "elevation"]]):
+            elif any([return_value_if_not_none(data[get_column_header_name(f"{val} {name}")]) is None for val in ["Latitude", "Longitude", "Elevation"]]):
                 raise_error = True
 
         if raise_error:
             raise DataInconsistencyError(
-                f"Sample with {get_entity_name('entity_id')} {sample.id} has an "
+                f"Sample with {get_column_header_name('entity_id')} {sample.id} has an "
                 f"invalid {name} position.  Please make sure that latitude, longitude, "
                 "and elevation are provided."
             )
 
     # only need to check lat since we already checked that if lat is
     # present, lng and ele are present, too
-    if (get_column_header_name("latitude_stop") in data and
-            return_value_if_not_none(data[get_column_header_name("latitude_stop")]) is not None):
-        if (get_column_header_name("latitude_start") not in data or
-                return_value_if_not_none(data[get_column_header_name("latitude_start")]) is not None):
+    if (get_column_header_name("Latitude stop") in data and
+            return_value_if_not_none(data[get_column_header_name("Latitude stop")]) is not None):
+        if (get_column_header_name("Latitude start") not in data or
+                return_value_if_not_none(data[get_column_header_name("Latitude start")]) is not None):
             raise DataInconsistencyError(
                 f"Sample with {get_entity_name('entity_id')} {sample.id} has a "
                 f"{get_entity_name('StopPosition')} but no valid "