How to Stop Chasing Timesheets on Slack and Teams
Pick any manager at a client-service company and ask about the last week of the month. A common answer: a growing list of names in a spreadsheet, a Slack or Microsoft Teams message that says some version of "please fill in your timesheet," sent to the same three people, again. This is not managing. It is nagging, and it happens every single month at agencies, consultancies, and software houses of every size - including the 1,000-person ones.
The frustrating part is that this problem is not a people problem. It is a tooling problem, and it has a straightforward fix.
Why timesheets go missing
Nobody skips a timesheet out of malice. It happens because filling it in has no natural trigger. Unlike a calendar invite or a Slack mention, an empty timesheet does not interrupt anyone. It just sits there, quietly, until someone with billing on their mind remembers to go looking for it - usually a day before invoices are due.
Add a few real-world complications and the problem compounds:
- Contractors and rotating teams. Agencies work with a mix of employees and contractors, and people move between clients and projects. Nobody owns "chasing timesheets" as a job, so it falls to whoever notices first, usually a manager who has better things to do.
- Multiple approval layers. A submitted timesheet is not a finished timesheet. Someone still has to review and approve it, and that step is just as easy to forget as the original entry.
- No consequence for lateness. If nothing locks, changes, or blocks after a deadline passes, there is no natural pressure to finish on time - only the manager's patience, which runs out fast in the last week of the month.
What "chasing" actually costs
The visible cost is time: the minutes spent typing reminders, checking who has and has not submitted, and following up again. The bigger cost is what it delays. Client invoices cannot go out until the hours behind them are complete and approved. A single missing timesheet from one contractor can hold up billing for an entire team, pushing revenue recognition into the next month and straining the relationship with a client who is, reasonably, asking where their invoice is.
There is a quieter cost too: trust. Managers who spend their time nagging are not spending it on the actual job - unblocking people, reviewing work, planning the next sprint. Every month-end chase is time stolen from managerial work that actually matters.
Automate the reminder, not the pressure
The fix is not a stricter policy or a scarier message. It is removing the manual step entirely. Sandtime.io's timesheet reminders send an automatic nudge - by dashboard notification, email, or popup - when a timesheet is incomplete, so the reminder comes from the system instead of a manager's inbox.
That alone solves the "forgot to ask" problem. The rest of the chain closes the loop:
- Reminders go out automatically, so timesheets get filled without anyone having to ask.
- Approvals happen with one click, directly from an email, so managers are not blocked by having to log in and click through the app for routine reviews.
- Approved and past periods lock automatically, so the numbers used for billing stop moving once a period closes.
- Overlap detection flags entries that do not add up - like two overlapping timers, or hours that could not physically fit in a day - before they reach a client-facing report.
Put together, this is not a single feature. It is a chain that starts with a reminder and ends with a locked, approved, billable record, without a manager typing a single follow-up message.
What this looks like in practice
A software house running four client teams sets up automatic reminders two days before the pay period closes. Anyone who has not submitted gets a nudge - first on the dashboard, then by email if it is still open the next day. Managers get a single email per pending timesheet once it is submitted, and approve it with one click before their coffee is done. By the time payroll or invoicing needs the numbers, every timesheet is in, approved, and locked. Nobody sent a single "please fill your timesheet" message that month.
Free for the whole team
None of this requires a premium tier or a seat limit workaround. Sandtime.io is free for unlimited users - reminders, approvals, and locking included, whether the team is three freelancers or a 1,000-person software house billing a dozen clients at once.
Start tracking for free and let the system do the chasing.