diff --git a/homeassistant/helpers/entity_platform.py b/homeassistant/helpers/entity_platform.py
index a57345023c9..9ad5fbd5f61 100644
--- a/homeassistant/helpers/entity_platform.py
+++ b/homeassistant/helpers/entity_platform.py
@@ -42,6 +42,7 @@ from . import device_registry as dr, entity_registry as er, service, translation
 from .deprecation import deprecated_function
 from .entity_registry import EntityRegistry, RegistryEntryDisabler, RegistryEntryHider
 from .event import async_call_later
+from .frame import report_usage
 from .issue_registry import IssueSeverity, async_create_issue
 from .typing import UNDEFINED, ConfigType, DiscoveryInfoType, VolDictType, VolSchemaType
 
@@ -822,13 +823,28 @@ class EntityPlatform:
         # An entity may suggest the entity_id by setting entity_id itself
         if not hasattr(entity, "internal_integration_suggested_object_id"):
             if entity.entity_id is not None and not valid_entity_id(entity.entity_id):
+                if entity.unique_id is not None:
+                    report_usage(
+                        f"sets an invalid entity ID: '{entity.entity_id}'. "
+                        "In most cases, entities should not set entity_id,"
+                        " but if they do, it should be a valid entity ID.",
+                        integration_domain=self.platform_name,
+                        breaks_in_ha_version="2027.2.0",
+                    )
+                else:
+                    entity.add_to_platform_abort()
+                    raise HomeAssistantError(f"Invalid entity ID: {entity.entity_id}")
+            try:
+                entity.internal_integration_suggested_object_id = (
+                    split_entity_id(entity.entity_id)[1]
+                    if entity.entity_id is not None
+                    else None
+                )
+            except ValueError:
                 entity.add_to_platform_abort()
-                raise HomeAssistantError(f"Invalid entity ID: {entity.entity_id}")
-            entity.internal_integration_suggested_object_id = (
-                split_entity_id(entity.entity_id)[1]
-                if entity.entity_id is not None
-                else None
-            )
+                raise HomeAssistantError(
+                    f"Invalid entity ID: {entity.entity_id}"
+                ) from None
 
         # Get entity_id from unique ID registration
         if entity.unique_id is not None:
diff --git a/tests/helpers/test_entity_platform.py b/tests/helpers/test_entity_platform.py
index 09a1b59c6c7..dcc26db5ae7 100644
--- a/tests/helpers/test_entity_platform.py
+++ b/tests/helpers/test_entity_platform.py
@@ -1967,11 +1967,39 @@ async def test_invalid_entity_id(
     assert entity.hass is None
     assert entity.platform is None
     assert "Invalid entity ID: invalid_entity_id" in caplog.text
+
     # Ensure the valid entity was still added
     assert entity2.hass is not None
     assert entity2.platform is not None
 
 
+async def test_invalid_entity_id_report_usage(
+    hass: HomeAssistant, caplog: pytest.LogCaptureFixture
+) -> None:
+    """Test that setting an invalid entity_id reports usage."""
+    platform = MockEntityPlatform(hass)
+    entity = MockEntity(entity_id="test_domain.INVALID-ENTITY-ID", unique_id="unique")
+
+    mock_integration = Mock(is_built_in=True, domain="test_platform")
+    with (
+        caplog.at_level(logging.WARNING),
+        patch(
+            "homeassistant.helpers.frame.async_get_issue_integration",
+            return_value=mock_integration,
+        ),
+    ):
+        await platform.async_add_entities([entity])
+
+    assert (
+        "Detected that integration 'test_platform' "
+        "sets an invalid entity ID: 'test_domain.INVALID-ENTITY-ID'"
+    ) in caplog.text
+
+    # Ensure the entity was still added
+    assert entity.hass is not None
+    assert entity.platform is not None
+
+
 class MockBlockingEntity(MockEntity):
     """Class to mock an entity that will block adding entities."""