Supplier reports provide summaries of which type of transactions?

Supplier reports focus specifically on supplier-related transactions. These reports summarize various activities and transactions that involve suppliers, such as purchases made, payment history, outstanding invoices, and any returns. This information is crucial for businesses to manage their relationships with suppliers, track expenses associated with inventory acquisition, and maintain an efficient procurement process.

The other options do not pertain to the purpose of supplier reports. Sales and inventory transactions relate to the business's revenue and stock management but do not provide specific insights into supplier interactions. Customer feedback surveys focus on customer satisfaction and experiences and have no relevance to supplier transactions. Employee training sessions, while important for workforce development, are entirely separate from the financial dealings and metrics associated with suppliers. Thus, it is clear that supplier reports are exclusively designed to highlight supplier-related transactions.