pg. 4

"To ensure a high level of understanding of the risks of modern slavery and human trafficking within our supply chains and businesses, we developed Modern Slavery training for our procurement staff."

"Our plans for 2022 include implementing our Modern Slavery training and strengthening risk assessments, to make our response to modern slavery and human trafficking more robust."

In the context of the page, it looks like all of the KPIs they mention, including this training one, are to be implemented in 2022. Therefore the training is "in development"