diff --git a/homeassistant/config_entries.py b/homeassistant/config_entries.py
index f1748c6b7fb..57b9765eb87 100644
--- a/homeassistant/config_entries.py
+++ b/homeassistant/config_entries.py
@@ -35,6 +35,7 @@ from .const import (
     CONF_NAME,
     EVENT_HOMEASSISTANT_STARTED,
     EVENT_HOMEASSISTANT_STOP,
+    PATCH_VERSION,
     Platform,
 )
 from .core import (
@@ -1483,6 +1484,19 @@ class ConfigEntriesFlowManager(
                 result["handler"], flow.unique_id
             )
 
+        if existing_entry is not None and PATCH_VERSION == "0.dev0":
+            # We temporarily restrict this to `dev` to get a feel for how many
+            # integrations this concerns
+            report_usage(
+                "creates a config entry when another entry with the same unique ID "
+                "exists, causing the old entry to be removed and replaced when it "
+                "should most likely update the previous entry and abort the flow",
+                core_behavior=ReportBehavior.LOG,
+                core_integration_behavior=ReportBehavior.LOG,
+                custom_integration_behavior=ReportBehavior.IGNORE,
+                exclude_integrations={"mobile_app"},
+            )
+
         # Unload the entry before setting up the new one.
         # We will remove it only after the other one is set up,
         # so that device customizations are not getting lost.