diff --git a/iris_webhooks_module/IrisWebHooksInterface.py b/iris_webhooks_module/IrisWebHooksInterface.py
index 2496f95..a92eb8a 100644
--- a/iris_webhooks_module/IrisWebHooksInterface.py
+++ b/iris_webhooks_module/IrisWebHooksInterface.py
@@ -476,11 +476,21 @@ def map_request_content(self, request_content, data):
                 # Handle templated strings
                 result[key] = self.replace_template_placeholders(value, data)
 
-            # handle nested values
+            # handle nested dicts
             elif isinstance(value, dict):
                 result[key] = self.map_request_content(value, data)
 
-            else:
+            # handle nested lists
+            elif isinstance(value, list):
+                result[key] = [
+                    self.map_request_content(item, data) if isinstance(item, dict)
+                    else self.replace_template_placeholders(item, data) if isinstance(item, str) and '${{' in item
+                    else item
+                    for item in value
+                ]
+
+            # handle string paths like "field.subfield"
+            elif isinstance(value, str):
                 keys = value.split('.')
 
                 if isinstance(data.get(keys[0]), list):
@@ -498,6 +508,10 @@ def map_request_content(self, request_content, data):
                     nested_value = self.get_nested(data, keys)
                     result[key] = nested_value if nested_value is not None else ""
 
+            # pass through other types as-is
+            else:
+                result[key] = value
+
         return result
 
     def _render_url(self, url, link, rendering_format):