Install and manage apps

We need one new app for returns and to remove two unused apps. Install the approved returns app, configure its return reasons and refund flow to match our policy, disable the two legacy apps that are no longer used, and run a smoke test on staging to verify refunds and notifications work. After testing, schedule the live install for Tuesday at 9am and confirm with operations.

Before I propose adding another app to the tech stack, make the business case concise. Summarize how the new app will save time or revenue compared to the current manual flow, list the three integration risks reviewers will worry about (data duplication, performance hit, notification changes), and give the minimal testing steps that would convince the ops and engineering leads to approve it.

I installed a new app and it broke parts of the storefront JavaScript, causing product images and cart updates to fail. Customers reported it immediately and sales dipped. The vendor says it worked in their demo. I must restore the storefront and decide whether to retry or roll back. What is the least risky immediate action, and how do I explain this to the vendor and leadership to get priority fixes or a refund?

Over time we accumulate apps that cause intermittent regressions or sit idle while we pay for them. This bloats costs and increases outage risk. What single habit change in how we evaluate and onboard apps would stop this pattern, and what two checks should be mandatory before any app is approved?