1. Let's get started by following this guide.

Install through the Shopify App Store

Steps:

1. Log in to the Shopify App Store.
2. Find OrderModifyByESTS app to install, and then click it.
3. On the app listing page, click Add app.
4. In your Shopify admin, to authorize the use of the app, click Install app.
5. After that a billing page will open, you have to purchase the plan first to open the app, click on approve to purchase the plan.

2. After the app is installed, you can view and use it from the Apps page in your Shopify admin.

Open app in Shopify

The app OrderModifyByESTS to open. It will look like below.

You have successfully complete the app Installation and setup process.

3. Now to activate your app on store front.

you need to perform the following steps. This procedure is only for the first time when you installing app.

Click on the “Customize“ option as highlighted in below screenshot.

4.Now click the Home page dropdown at the top and select “Checkout and customer accounts”.

5.the Checkout page will appear. Now click the Checkout dropdown at the top and select “Thank you”.

6. Now click on “Add block” and select the “order-status-thank-you” app, as shown in the screenshot below.

Click on the “Save” button which is placed at top right corner of screen.

7. Then click on the “Thank you” dropdown again, and this time select “Order status”.

8. Now click on “Add block” and select the “order-status-thank-you” app, as shown in the screenshot below.

Click on the “Save” button which is placed at top right corner of screen.

9. Finally, the OrderModifyByESTS app setup is complete, and the app will now appear on both the Thank You and Order Status pages of your store.

Congratulations! you have setup all things. You are now ready to use this app.