diff --git a/orders/metadata-schema.json b/orders/metadata-schema.json
index 88746b9a..f6648c7e 100644
--- a/orders/metadata-schema.json
+++ b/orders/metadata-schema.json
@@ -32,6 +32,10 @@
           "required": ["AuthenticationType"],
           "additionalProperties": false
         },
+        "initiate_step": {
+          "type": "string",
+          "description": "This is the step of the OAuth flow to start at when initiated by the 3rd party. Possible values are: \"authorization\", \"request_token\""
+        },
         "access_token": {
           "description": "Added to allow oauth 1.0 to work.",
           "type": "object",
diff --git a/shipping/metadata-schema.json b/shipping/metadata-schema.json
index 8c15ab82..e9c244bb 100644
--- a/shipping/metadata-schema.json
+++ b/shipping/metadata-schema.json
@@ -38,6 +38,10 @@
             "AuthenticationType"
           ]
         },
+        "initiate_step": {
+          "type": "string",
+          "description": "This is the step of the OAuth flow to start at when initiated by the 3rd party. Possible values are: \"authorization\", \"request_token\""
+        },
         "access_token": {
           "type": "object",
           "additionalProperties": false,