diff --git a/api-specs/connect/examples/connector/ConfigurationKey.json b/api-specs/connect/examples/connector/ConfigurationKey.json
deleted file mode 100644
index 7474fd045..000000000
--- a/api-specs/connect/examples/connector/ConfigurationKey.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "key": "CONFIG_KEY",
-  "description": "config key description"
-}
diff --git a/api-specs/connect/examples/connector/ConfigurationKeySecured.json b/api-specs/connect/examples/connector/ConfigurationKeySecured.json
new file mode 100644
index 000000000..48e905253
--- /dev/null
+++ b/api-specs/connect/examples/connector/ConfigurationKeySecured.json
@@ -0,0 +1,5 @@
+{
+  "key": "SECURED_CONFIG_KEY",
+  "description": "secure config key description",
+  "required": true
+}
diff --git a/api-specs/connect/examples/connector/ConfigurationKeyStandard.json b/api-specs/connect/examples/connector/ConfigurationKeyStandard.json
new file mode 100644
index 000000000..ae45a032c
--- /dev/null
+++ b/api-specs/connect/examples/connector/ConfigurationKeyStandard.json
@@ -0,0 +1,5 @@
+{
+  "key": "CONFIG_KEY",
+  "description": "config key description",
+  "default": "this is the default value"
+}
diff --git a/api-specs/connect/ruleset.xml b/api-specs/connect/ruleset.xml
index d9b3b3af4..1dd537276 100644
--- a/api-specs/connect/ruleset.xml
+++ b/api-specs/connect/ruleset.xml
@@ -18,6 +18,7 @@
             <name>com.commercetools.rmf.validators.DatetimeRule</name>
             <options>
                 <option type="exclude">datetime</option>
+                <option type="exclude">timestamp</option>
             </options>
         </rule>
         <rule>
diff --git a/api-specs/connect/types/common.raml b/api-specs/connect/types/common.raml
index 4da946ff6..8d59855aa 100644
--- a/api-specs/connect/types/common.raml
+++ b/api-specs/connect/types/common.raml
@@ -31,8 +31,28 @@ types:
       comment:
         type: string
         description: The body text of the comment.
-  ConfigurationKey:
-    example: !include ../examples/connector/ConfigurationKey.json
+  ConfigurationKeyStandard:
+    example: !include ../examples/connector/ConfigurationKeyStandard.json
+    description: |
+      The name, description, and default value of a standard environment variable.
+    properties:
+      key:
+        type: string
+        description: Name of the environment variable.
+      description:
+        type: string
+        description: Description of the environment variable.
+      default?:
+        type: string
+        description: Default value of the environment variable.
+      required?:
+        type: boolean
+        description: Indicates if the environment variable is required.
+        default: false
+  ConfigurationKeySecured:
+    example: !include ../examples/connector/ConfigurationKeySecured.json
+    description: |
+      The name and description of a secret environment variable.
     properties:
       key:
         type: string
@@ -40,6 +60,10 @@ types:
       description:
         type: string
         description: Description of the environment variable.
+      required?:
+        type: boolean
+        description: Indicates if the environment variable is required.
+        default: false
   ConfigurationValue:
     example: !include ../examples/deployment/ConfigurationValue.json
     properties:
@@ -64,11 +88,12 @@ types:
           - service
           - event
           - job
+          - mc-app
       standardConfiguration:
-        type: ConfigurationKey[]
-        description: Contains the name and description of standard environment variables.
+        type: ConfigurationKeyStandard[]
+        description: Contains the name, description, and default values of standard environment variables.
       securedConfiguration:
-        type: ConfigurationKey[]
+        type: ConfigurationKeySecured[]
         description: Contains the name and description of secret environment variables.
   DeploymentConfigurationApplication:
     description: |