diff --git a/src/main/java/edu/isi/oba/config/CONFIG_FLAG.java b/src/main/java/edu/isi/oba/config/CONFIG_FLAG.java
index b9622be..f85e99e 100644
--- a/src/main/java/edu/isi/oba/config/CONFIG_FLAG.java
+++ b/src/main/java/edu/isi/oba/config/CONFIG_FLAG.java
@@ -9,5 +9,6 @@ public enum CONFIG_FLAG {
   PATH_GET,
   PATH_PATCH,
   PATH_POST,
-  PATH_PUT
+  PATH_PUT,
+  REQUIRED_PROPERTIES_FROM_CARDINALITY,
 }
diff --git a/src/main/java/edu/isi/oba/config/YamlConfig.java b/src/main/java/edu/isi/oba/config/YamlConfig.java
index 56052d6..d0e9b31 100644
--- a/src/main/java/edu/isi/oba/config/YamlConfig.java
+++ b/src/main/java/edu/isi/oba/config/YamlConfig.java
@@ -19,6 +19,7 @@ public class YamlConfig {
     put(CONFIG_FLAG.PATH_PATCH, false);
     put(CONFIG_FLAG.PATH_POST, false);
     put(CONFIG_FLAG.PATH_PUT, false);
+    put(CONFIG_FLAG.REQUIRED_PROPERTIES_FROM_CARDINALITY, false);
   }};
 
   String DEFAULT_OUTPUT_DIRECTORY = "outputs";
@@ -196,6 +197,14 @@ public void setDefault_properties(Boolean default_properties) {
     this.configFlags.put(CONFIG_FLAG.DEFAULT_PROPERTIES, default_properties);
   }
 
+  public Boolean getRequired_properties_from_cardinality() {
+    return this.configFlags.get(CONFIG_FLAG.REQUIRED_PROPERTIES_FROM_CARDINALITY);
+  }
+
+  public void setRequired_properties_from_cardinality(Boolean required_properties_from_cardinality) {
+    this.configFlags.put(CONFIG_FLAG.REQUIRED_PROPERTIES_FROM_CARDINALITY, required_properties_from_cardinality);
+  }
+
   public AuthConfig getAuth() {
     return auth;
   }