It's a generic comment on taking remedial action when required, for instance:

1. "These audits assess compliance with the M&S Global Sourcing Principles and are, amongst other things, intended to identify any Modern Slavery practices. If issues are identified, appropriate investigative and remedial actions are taken." (Page 5)

2. "In all instances, we have verified evidence of suppliers putting corrective actions in place,or are working with suppliers to achieve this." (Page 5)