You should check the numbers of signatures for proxy voters for all polls and postal voters for Scottish Parliamentary and local council elections that will be subject to the refresh process. The age of the signature is calculated based on the latest signature provided. The EMS should be able to run a report to identify these.
You should ensure that template notices exist to send to electors to obtain refreshed signatures, and to notify any electors whose absent vote you have cancelled because they did not provide a fresh signature.