If you are currently using the Ethereum network Ropsten via the Wallet as a Service API, please be aware that Ropsten and multiple other Ethereum testnets are planned for deactivation in Q4 2022 (source). After that, all data and balances in Ropsten will be lost. Eventually, Ropsten will be removed as a built-in network from WaaS.

We have decided to offer "Goerli" as the successor to Ropsten and recommend migrating to Goerli as soon as possible as it will be the only supported Ethereum test network for the foreseeable future. Goerli will be rolled out as the new built-in Ethereum testnet in WaaS with version 1.12, which is expected to be available around September 2022. Please note that it is possible to use Goerli before the official rollout by providing a supported Goerli RPC URL to the tangany-ethereum-network header in WaaS.