What should be verified before completing a customer's transaction?

Verifying account information and the customer's identity is a crucial step before completing any transaction. This ensures that the person conducting the transaction is indeed authorized to access the account, which helps prevent fraud and maintain the security of both the customer’s funds and identity. A bank teller must confirm identifying details such as account numbers, identification documents, and any additional required information to ensure the accuracy of the transaction being processed. This practice safeguards the integrity of banking operations and protects customers from potential identity theft.

The other options do not prioritize the essential verification of personal identity and account details necessary for secure banking transactions. Ensuring accurate account data and customer verification takes precedence over less relevant aspects like social media presence or promotional offers. Additionally, while seeking manager approval may be necessary for specific high-risk transactions or discrepancies, it is not a blanket requirement for all transactions.