How is a receipt rejection communicated to the supplier in SAP Ariba?

The correct answer highlights that receipt rejection is officially communicated by the buyer outside of the SAP Ariba system. This implies that while the system may track and document the rejection, it does not automatically notify the supplier about such actions. Instead, the communication of rejection requires direct interaction from the buyer to ensure that the supplier is well-informed of the reasons behind the rejection and the necessary steps they may need to take.

Effective communication in procurement processes is vital for maintaining supplier relationships and resolving issues efficiently. In this context, informing the supplier directly allows for personalized communication, which can help clarify misunderstandings and facilitate quicker resolutions.

The other options suggest varying degrees of automatic or indirect communication, which do not align with the hands-on approach typically encouraged in procurement practices for sensitive issues like receipt rejections. This understanding reinforces the importance of proactive and clear communication in supplier relationships.