A client requested the program status report. After sending it, the project manager realized they accidentally copied another manager from the client's organization on the email. What should the project manager do?

The project manager should inform the client and their supervisor about the mistake. This demonstrates transparency and accountability, which are crucial for maintaining trust and professional relationships. Acknowledging the error promptly allows for a proactive approach to potential issues, such as the unintended recipient acting on the information or feeling slighted if they were not meant to receive it. Contacting the additional manager directly to ask them to delete the email might be perceived as an attempt to cover up the mistake and could still lead to awkwardness if the client or their supervisor finds out later. Waiting for client feedback is a passive approach that avoids addressing the error and could lead to more significant problems if the unintended recipient reacts negatively. Resending the report without the other manager doesn't address the fact that the first email was already sent and seen by the unintended recipient.