Changes in Magento 2 Website

Basic Information : I have magento 2.3.4 installation on which I have 2 e commerce stores running • [login to view URL] – selling female western wear (martini) • [login to view URL] – selling handicrafts and decor items (smw) Hosting : e2e networks ( cpanel - whm) configuration – 8 vcpu , 20 gb ram , 300 GB ssd running centos Requirement 1 : Emails : • Order intimation email was being sent earlier. Now it has stopped going. If we go to the orders at the backend and manually click on Send Email , the email goes. • If the customer chooses to pay online and his payment is declined / aborted , he still gets the order confirmation email. Requirement 2 : Videos at the frontend : • While adding video to products , they are visible at the back end and we can play the videos also. But these videos are shown as images in the frontend. The process of adding Google Youtube API has been done. Requirement 3 : Changes in integration of magento site with unicommerce : It is a minor passing of two parameters The website is integrated with unicommerce which is being used for inventory management , order processing and returns. The inventory is being synched , order is being pulled into unicommerce and the invoice is being pushed back to magento. Unicommerce ([login to view URL]) is unable to pull COD charges and the gift wrap charges. Unicommerce expects a parameter cash_on_delivery_fee to be pushed from magento. cash_on_delivery_fee is the extra amount charged for COD charges. We are using a plugin (Land of Coder) for extra fee for COD. I think that the name of the parameter being used by plugin is not cash_on_delivery_fee. Also Gift wrap charges are not being pushed. This is also about a parameter being pushed to unicommerce. Requirement 4 : Integerating Google Tag Manager to the websites Important • Both the stores are completely functional. We would expect that it remains the same.