diff --git a/modules/ppcp-settings/resources/js/data/common/action-types.js b/modules/ppcp-settings/resources/js/data/common/action-types.js
index 4a5569b11..ca44a470e 100644
--- a/modules/ppcp-settings/resources/js/data/common/action-types.js
+++ b/modules/ppcp-settings/resources/js/data/common/action-types.js
@@ -12,6 +12,7 @@ export default {
 	SET_PERSISTENT: 'ppcp/common/SET_PERSISTENT',
 	RESET: 'ppcp/common/RESET',
 	HYDRATE: 'ppcp/common/HYDRATE',
+	SET_MERCHANT: 'ppcp/common/SET_MERCHANT',
 	RESET_MERCHANT: 'ppcp/common/RESET_MERCHANT',
 
 	// Activity management (advanced solution that replaces the isBusy state).
diff --git a/modules/ppcp-settings/resources/js/data/common/actions.js b/modules/ppcp-settings/resources/js/data/common/actions.js
index 4dded01ac..fbbe022de 100644
--- a/modules/ppcp-settings/resources/js/data/common/actions.js
+++ b/modules/ppcp-settings/resources/js/data/common/actions.js
@@ -110,6 +110,17 @@ export const setManualConnectionMode = ( useManualConnection ) =>
 export const setWebhooks = ( webhooks ) =>
 	setPersistent( 'webhooks', webhooks );
 
+/**
+ * Replace merchant details in the store.
+ *
+ * @param {Object} merchant - The new merchant details.
+ * @return {Action} The action.
+ */
+export const setMerchant = ( merchant ) => ( {
+	type: ACTION_TYPES.SET_MERCHANT,
+	payload: { merchant },
+} );
+
 /**
  * Reset merchant details in the store.
  *
diff --git a/modules/ppcp-settings/resources/js/data/common/reducer.js b/modules/ppcp-settings/resources/js/data/common/reducer.js
index c8fb9a8dc..2f207b335 100644
--- a/modules/ppcp-settings/resources/js/data/common/reducer.js
+++ b/modules/ppcp-settings/resources/js/data/common/reducer.js
@@ -113,6 +113,10 @@ const commonReducer = createReducer( defaultTransient, defaultPersistent, {
 		features: Object.freeze( { ...defaultTransient.features } ),
 	} ),
 
+	[ ACTION_TYPES.SET_MERCHANT ]: ( state, payload ) => {
+		return changePersistent( state, { merchant: payload.merchant } );
+	},
+
 	[ ACTION_TYPES.HYDRATE ]: ( state, payload ) => {
 		const newState = changePersistent( state, payload.data );