What must be confirmed before attempting to locate a message?

Before attempting to locate a message, it is essential to confirm that the complainant has contacted the relevant party. This step is crucial because it ensures that the appropriate channels have been utilized to address the issue at hand. Without this confirmation, the process of locating a message could be premature, as it may already have been addressed or resolved through direct communication between the complainant and the relevant party.

This confirmation allows for a more efficient use of resources and time, preventing unnecessary investigations into messages that may no longer be relevant. It establishes a clear communication pathway and confirms that the complainant has taken the necessary initial steps before delving deeper into the tracking process.

The other choices address aspects that may be important but are not prerequisites for locating a message. For example, while having the system operational is beneficial, it does not directly impact the validity of the message or the complainant's prior actions. Similarly, the method of message delivery, such as registered mail, is important for certain types of communications but does not necessarily need confirmation prior to attempting to locate a message. Lastly, confirming that no prior inquiries have been made might be relevant but is less critical compared to ensuring that the complainant has already communicated with the relevant party.