A critical functionality for users operating across multiple devices is the seamless synchronization of custom network configurations. This test involves adding a new custom network (like a private Ethereum chain or a less common Layer-2 solution) on the Android MetaMask application and verifying whether this network configuration automatically appears on other devices where the same wallet is imported. The test must check if all network parameters—RPC URL, chain ID, currency symbol, and block explorer—are perfectly preserved during this synchronization process. This feature eliminates the need for manual reconfiguration on each device, significantly enhancing user experience and reducing the risk of errors from manual entry. The synchronization mechanism should work reliably whether the devices are on the same network or different networks, ensuring consistency in the user’s multi-device workflow. For advanced network configuration details and troubleshooting synchronization issues, comprehensive guides are available at metamask. The test is successful if the custom network appears identically on all linked devices without any manual intervention required.