Listenlayer

ListenLayer is the world’s first, and only cloud data layer platform. Use Listeners to create powerful Data Layers that enhance the accuracy and quality of your website tracking & marketing data – all without programming.
This plugin enables and improves certain data layer activity generated by Listeners inside your ListenLayer account. Sign up for a free ListenLayer.com account. If a Listener you are using prompts you to install this plugin in your WordPress website, you can do so from this plugin screen.
Documentation and support for this plugin is provided through your ListenLayer.com user account.

ListenLayer – Cloud Data Layer Platform

advatix

Advatix FEP API Connection is used for synchronization woocommerce store with Advatix FEP.
It sync your woocommerce products, inventory. 
It sync your woocommerce orders and manage order statuses. 
It will create new order statuses.
THIRD PARTY INFO
This plugin uses <a href="https://developer.advatix.net/" rel="nofollow ugc">Advatix.net</a> developer services which helps integrate your woocommerce products and orders to sync in multi-directional. 
After generating your API credentials from developer.advatix.net, it starts synchronization of products and orders into your woocommerce store and from your woocommerce store to <a href="https://developer.advatix.net/" rel="nofollow ugc">Advatix FEP</a>. 
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Advatix FEP API Connection

Advatix FEP API Connection is used for synchronization woocommerce store with Advatix FEP.

ListenLayer – Cloud Data Layer Platform vs Advatix FEP API Connection