Why Purchase Approvals Belong in Slack

The real problem is not the spreadsheet

Someone asks for a laptop in Slack. Three people react. The thread goes quiet. Two weeks later finance asks who approved it, where the receipt is, and which category it belongs in.

That mess is not a “spend platform” problem. It is a conversation problem. Requests start in Slack, so approvals should finish there too — then the books should update themselves.

What “approvals in Slack” actually means

A useful Slack approval flow does four things end to end:

1. Capture the ask — what, how much, vendor, category, who should approve
2. Decide in context — approve, reject with a reason, or forward to the right person
3. Chase the receipt — follow up until someone attaches it
4. Book it — create the right QuickBooks or Xero record with the receipt attached

If any of those steps lives in another app, people skip it. That is how you get approved purchases with no receipt, or receipts with no approval trail.

Why card-first tools often miss the mark

Many “approval” products are really card products. The approval screen is the onboarding path; the business model is moving your spend onto their rails.

That can be the right trade if you want a new corporate card and a migration. It is the wrong trade if your actual pain is simpler: requests die in DMs, and whoever closes the books retypes everything.

You do not need new payment rails to fix that. You need the decision and the paperwork to stay attached to the same request.

What good looks like for a small team

For teams already on Slack plus QuickBooks Online or Xero, the bar is practical:

• Requesters and approvers never leave Slack
• Approvers see amount, vendor, category, and urgency in one DM
• Forward works when the first approver is away
• Company-card spend becomes an Expense; out-of-pocket becomes a Bill
• The receipt is attached to the accounting record, not buried in a channel
• Months later you can still see who asked, who approved, and what got booked

Start where the request already is

If purchase requests already start in Slack, putting approvals somewhere else creates a second inbox. Putting them in Slack keeps the habit people already have — and lets accounting stop chasing screenshots.

That is the job: one purchase, end to end, from the Slack ask to a categorized record with a receipt attached.