diff --git a/xyz/openbmc_project/Inventory.errors.yaml b/xyz/openbmc_project/Inventory.errors.yaml
new file mode 100644
index 0000000..45ce7c6
--- /dev/null
+++ b/xyz/openbmc_project/Inventory.errors.yaml
@@ -0,0 +1,4 @@
+- name: NotPresent
+  description: The inventory is not present.
+- name: Nonfunctional
+  description: The inventory is nonfunctional.
diff --git a/xyz/openbmc_project/Inventory.metadata.yaml b/xyz/openbmc_project/Inventory.metadata.yaml
new file mode 100644
index 0000000..1e3eb35
--- /dev/null
+++ b/xyz/openbmc_project/Inventory.metadata.yaml
@@ -0,0 +1,6 @@
+- name: NotPresent
+  inherits:
+    - xyz.openbmc_project.Common.Callout.Inventory
+- name: Nonfunctional
+  inherits:
+    - xyz.openbmc_project.Common.Callout.Inventory