diff --git a/packages/headless/src/controllers/commerce/core/parameter-manager/headless-core-parameter-manager.ts b/packages/headless/src/controllers/commerce/core/parameter-manager/headless-core-parameter-manager.ts
index 016e6ff4d3c..5fa72c783a7 100644
--- a/packages/headless/src/controllers/commerce/core/parameter-manager/headless-core-parameter-manager.ts
+++ b/packages/headless/src/controllers/commerce/core/parameter-manager/headless-core-parameter-manager.ts
@@ -15,7 +15,7 @@ export interface ParameterManagerProps<T extends Parameters> {
   /**
    * The initial state that should be applied to the `ParameterManager` sub-controller.
    */
-  initialState: ParameterManagerInitialState<T>;
+  initialState?: ParameterManagerInitialState<T>;
 }
 
 export interface CoreParameterManagerProps<T extends Parameters>
@@ -116,13 +116,15 @@ export function buildCoreParameterManager<T extends Parameters>(
   const {dispatch} = engine;
   const controller = buildController(engine);
 
-  validateInitialState(
-    engine,
-    initialStateSchema(props.parametersDefinition),
-    props.initialState,
-    'buildCoreParameterManager'
-  );
-  dispatch(props.restoreActionCreator(props.initialState.parameters));
+  if (props.initialState) {
+    validateInitialState(
+      engine,
+      initialStateSchema(props.parametersDefinition),
+      props.initialState,
+      'buildCoreParameterManager'
+    );
+    dispatch(props.restoreActionCreator(props.initialState?.parameters));
+  }
 
   return {
     ...controller,