App Store and Google Play App Updates
The status an app gets if some points of the guidelines are not complied with. Usually a developer gets an email with a list of the issues. These are mostly spam, app clones, human rights violations, intellectual property violations, adult content, or content involving cruelty.
Once the issues are fixed, an app can be sent to app review again.
For example, Apple can reject an app if its screenshots look like Samsung or other Android devices.
The list of Apple common app rejections:
The list of Google rejections: