Overview
Order Time has several integrator e-commerce partners. The partnership with these platforms makes inventory and order processing system significantly efficient.
In Order Time, the e-commerce partners are presented as ‘Carts’. When you are setting up your E-commerce Integration in Order Time, you have to add the appropriate connection settings for the cart of your choice.
This article will show you the steps for setting up your Cart and generating connection credentials for Shopify.
Solution
Go to Sales Channels

Click on Shopify App store

Search for and select Order Time Inventory

Click Install

Install again on the popup.

select Login and attach existing account.

It will bring you to the Order Time login screen. Log in as the admin and it will connect the cart.
Then you can go to Admin > Ecommerce Integration > Configure > proceed to set up options.
https://help.ordertime.com/help/setting-up-ecommerce-integration