When ordering goods, the wrong contract (wrong price or quantity) was sent to the supplier, and the supplier did also not find the error. What are the consequences? Could you please provide several recomedations?

How management could measure the success of your recommended changes?

and

Identify two appropriate Key Performance Indicators (KPIs) to assess the impact of the changes.

Explain how each of the KPIs will be calculated, and what data will be used, including how the data can be collected if necessary.

Explain why these measures are suitable to assess the changes in performance expected as a result of your recommendations.