what's the error?

Good morning.

I use a broker account

I am trying to create a sub account through api.

‘POST’, ‘sapi/v1/broker/subAccount’
I want to create a sub account using this endpoint.

{“code”:-9000,“msg”:“com.binance.account.error.AccountErrorCode.QUERY_BROKER_SUB_ACCOUNT_CONFIG_ERROR”}

I keep getting this error. What’s wrong?

And when creating a sub account, as in the response example below
Is it possible to set the email as the desired email?

{
“subaccountId”: “1”,
“email”: “vai_42038996_47411276_brokersubuser@lac.info”,
“tag”:“bob123d”
}

Hi. Could you please directly contact your broker manager for this enquiry?