diff --git a/CHANGELOG.md b/CHANGELOG.md
index c88f417..10b0daf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+### Unreleased changes
+<details>
+* bugfix: `lightbeam send` not writing >=7.2 API error messages when error payload does not contain `errors` nor `validationErrors`
+</details>
+
 ### v0.1.9
 <details>
 <summary>Released 2025-09-26</summary>
diff --git a/lightbeam/send.py b/lightbeam/send.py
index 43cb145..10f2931 100644
--- a/lightbeam/send.py
+++ b/lightbeam/send.py
@@ -177,6 +177,11 @@ async def do_post(self, endpoint, file_name, data, line_number, data_hash):
                                 # (Ed-Fi API <= 7.1 style errors)
                                 messages.append(str(response.status) + ": " + util.linearize(response_body.get("message", "")))
 
+                            elif "detail" in response_body:
+                                # (Ed-Fi API >= 7.2 style errors fallback. 
+                                # All error payloads should contain this key, though it's not guaranteed to be informative
+                                messages.append(str(response.status) + ": " + util.linearize(response_body.get("detail", "")))
+
                             # update run metadata...
                             failures = self.lightbeam.metadata["resources"][endpoint].get("failures", [])
                             for message in messages: