diff --git a/plugins/woocommerce-admin/TESTING-INSTRUCTIONS.md b/plugins/woocommerce-admin/TESTING-INSTRUCTIONS.md
index afdca98432f..02366c9633f 100644
--- a/plugins/woocommerce-admin/TESTING-INSTRUCTIONS.md
+++ b/plugins/woocommerce-admin/TESTING-INSTRUCTIONS.md
@@ -52,6 +52,16 @@ INSERT INTO `wp_wc_admin_notes` (`name`, `type`, `locale`, `title`, `content`, `
 -   De-activate the Woocommerce Admin plugin.
 -   See that note is **not** in the inbox
 
+### Remove mobile activity panel toggle #6539
+
+1. Narrow your viewport to < 782px.
+2. Navigate to various WooCommerce pages.
+3. Make sure the various tabs can be seen and function as expected.
+4. Navigate to a WooCommerce Admin page that is not the homepage.
+5. Open the "Inbox" panel.
+6. Click on the "Inbox" panel button again.
+7. Make sure the panel closes as expected and does not reopen immediately.
+
 ### Add legacy report items to new navigation #6507
 
 1. Enable the new navigation experience.