When selling a security for a customer, which of the following items is NOT required on the sell order ticket?

When processing a sell order ticket for a customer, certain critical information must be included to comply with regulations and ensure proper transaction execution. The customer's Social Security Number (SSN) is not required on the sell order ticket. While the SSN is important for account verification and tax reporting purposes, it is not directly relevant to the execution of the sell order itself. The main focus of the sell order ticket is to detail the specifics of the transaction – such as the number of shares or par value for the security being sold, the location (or market) where the security will be sold, and whether discretion was exercised during the transaction. Each of these items plays a crucial role in the execution process and maintaining compliance with regulations, unlike the SSN, which serves a different purpose. This distinction is why the inclusion of the SSN is not necessary on the sell order ticket.