TL;DR: Ach Payments Duplicate Records Fix — 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 Duplicate Records Fix
ACH payment duplicate records in 2026 are almost always caused by webhook retries being processed more than once. When Stripe or Dwolla retries a webhook delivery (because your endpoint returned a non-2xx response), your handler processes the same event twice — creating a duplicate transaction record in your database.
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?
The fix is idempotency: before processing any webhook event, check whether you have already processed that event ID. Store the event ID in your database with a unique constraint, and skip processing if it already exists. Stripe sends the same event ID on every retry — this pattern catches 100% of duplicate webhook issues. Also check for double-click prevention on your payment form: a form submitted twice in quick succession can also create duplicate records.
