A report has found a lack of knowledge about tracking pensioner bus passes "significantly hindered" a hunt for Daniel McSwiggan earlier this year.
The Alzheimer's sufferer, 69, from Motherwell, went missing in September and was last seen alive in the Hamilton Low Park area. His body was found in Strathclyde Park Golf Course more than two weeks later.
Assitant Chief Constable Wayne Mawson said: "Police Scotland will implement and develop the learning points made by the Commissioner.
"We are appreciative that during the review the Police Investigations and Review Commissioner positively acknowledged that the initial actions taken by police officers were appropriate."
After his family raised concerns about the way police handled the investigation, it was looked at by the Police Investigations and Review Commissioner (PIRC).
The report said police should have treated Mr McSwiggan's disappearance as a higher risk.