Exception: Multiple accounts not supported

[PriyanshDwivedi]

I created an individual account and generated an API key with all v1 permissions. Then, I installed the coinbase java maven library and used the below code to create a new account but got exception. Below is the code to create new account

Coinbase cb = new CoinbaseBuilder().withApiKey(Bit7PayConstants.COINBASE_KEY,Bit7PayConstants.COINBASE_SECRET).build();
Account acc = new Account();
acc.setName(account_id);
Account a = cb.createAccount(acc);

Exception
com.coinbase.api.exception.CoinbaseException: Multiple accounts not supported

Need to know how to create multiple accounts for all my wallet app users and if there is any limit on the number of accounts I can create.