TL;DR: Ach Payments Keeps Disconnecting — most cases trace to a config mismatch, a hidden assumption, or a step skipped during setup. The fix path below covers the high-percentage causes first. If you're still stuck after 10 minutes, text PJ — most issues answered in one reply. 858-461-8054.
Operator Problem Guide
Ach Payments Keeps Disconnecting
ACH payment connections that keep disconnecting in 2026 are almost always an OAuth token issue or a Plaid link that needs to be re-authenticated. Bank connections through third-party aggregators (Plaid, MX, Finicity) expire periodically and require the customer to re-verify — this is a regulatory requirement, not a bug.
Why This Happens
Configuration gaps between tools or services
Missing integrations or manual workarounds that weren't designed to scale
Changes in vendor behavior, pricing, or API that weren't communicated clearly
What To Check First
Verify your current setup matches the vendor's latest documentation
Look for recent changes — platform updates, new team members, configuration drift
Check if the problem is consistent or intermittent (different root causes, different fixes)
When To Escalate
The problem is costing you money or customers per week
You've spent more than 2 hours on it without progress
A vendor quoted you more than $500 and you're not sure if it's necessary
Dealing with this right now?
Build your ACH integration with re-authentication in mind from the start. When a connection expires, send the customer a re-link request immediately — the longer you wait, the harder it is to get them to complete it. Plaid's Link update mode handles this with a pre-built flow. For Stripe Financial Connections, use the refresh_url parameter to handle token expiry gracefully without the customer needing to re-enter account details from scratch.
