Send a short follow-up when someone hasn’t replied, with a clear next step and deadline.
Subject: Quick follow-up – [Topic]
Hi [Name],
Just a quick follow-up on my message from [DD Month YYYY] about [Topic].
If you’re able to confirm by [DD Month YYYY], that would really help. If now isn’t a good time, no worries — just let me know what timing works best.
Thanks,
[Your name]