unified social credit code data already exists. When the user is in the bank at night, the query result shows that "the unified social credit code data already exists", which usually means that the credit information of the subject you are querying already exists in the relevant databases such as the enterprise credit information publicity system, that is, the subject has been registered. Bank signing in futures account refers to the signing of an agreement between a futures company and a bank, so as to facilitate the circulation and settlement of funds in futures trading.