How to Fill the Least Popular Volunteer Shifts
Give cleanup a start, finish and clear task on your Proximatic signup. People can see how the job fits their day, and you can ask for the places still open.
Welcome is full. Cleanup is empty. Another general call for volunteers can leave you with more interest in the job that already has enough people.
Make the overlooked job a concrete offer on your Proximatic event. “Clear tables and return supplies, 3:30–4:30, with the closing lead” tells someone what they can contribute and when they can leave. The job has its own places, so a person free after lunch can take cleanup without signing up for the morning.
Then use the roster to focus the ask. If cleanup still has two openings, invite people for those two places and share the event link. Each reservation updates the crew you're planning from; you aren't matching replies against an old copy of the signup list.
For an existing team, Find cover can help you find available people for an open upcoming shift. Review the candidates, agree the job with someone who can take it, and assign them to the shift. You can direct your effort toward a possible helper instead of asking the whole group the same question again.
Create your event signup and make the unfilled job a real choice.