You need to follow following steps :
- Go to Quickbooks Online site and Sign In or Sign Up with a account.
- Click on create a new app for the accounting of your woocommerce store ( you don’t need to create a new app if you have already a running app for store accounting).
- Select and open a app for getting production keys.
- In app dashboard you will get a keys tab , open keys tab.
- Copy client id form keys panel and put in plugin configuration section client id.
- Copy Client Secret form keys panel and put in plugin configuration section Client Secret.
- Put Plugin configuration page URL as quickbooks redirect URL in the keys tab redirect URL section.
- Select Account type in plugin configuration page.
- Now click on authenticate button.
- Now your store is connected to quickbooks online.