FundTransfer doesn't work

[qinlinyong]

execuse me. accounting the okex document,if i want transfer Funding account to Trading account,like this: Transfer 1.5 USDT from funding account to Trading account when current account is master-account POST /api/v5/asset/transfer body { "ccy":"USDT", "amt":"1.5", "from":"6", "to":"18" }

but in FundTransfer parameter OkexAccount ,there is no 18 Trading account. how can i solve this problem?