Short answer: start with the missing record
If an order exists in Shopify but not in n8n, the cause could be a missed or filtered webhook, an inactive or misconfigured endpoint, a delayed event, or a mismatch in the records you exported. If n8n has a successful execution but your CRM has no result, the break may instead be downstream. These are different investigations.
First compare what should have happened with what was actually observed. Shopify explicitly recommends a periodic reconciliation job because webhook delivery is not guaranteed. Use the platform's delivery metrics and logs before diagnosing the destination. Shopify webhook guidance · Shopify delivery troubleshooting.
Three boundaries to check
For HTTPS subscriptions Shopify recommends a prompt 2xx acknowledgment and processing that can tolerate duplicates and out-of-order events. The platform documents bounded retries and delivery logs. Do not interpret the X-Shopify-Webhook-Id header as the Shopify order ID: it identifies a webhook delivery for deduplication, not the canonical business object. Official delivery notes.
Reproduce one missing arrival with fictional data
Use one stable, pseudonymous event key across the three exports. It may be a consistently transformed order identifier if you are authorized to work with it. Do not join by customer name or assume that separately hashed, regenerated or truncated identifiers will match. The following inputs are invented and contain no real customer information.
Optional C — expected source events
event_id DEMO-201 DEMO-202 DEMO-203
A — workflow executions
event_id,status DEMO-201,success DEMO-202,failed
B — independent downstream receipts
event_id,receipt_id DEMO-201,CRM-201
Choose Open the prefilled fictional Shopify check to load all three invented CSVs and see the result immediately. No store connection is made and the link contains no event data. You can also copy the three blocks into the free browser-local Outcome Reconciler manually. With these snapshots, DEMO-203 appears in the source list but not the execution list; the checker flags source_without_execution. DEMO-202 explicitly failed; this still needs a separate decision, but the tool does not automatically label its missing receipt a proven downstream defect.
A missing execution row can reflect an export window mismatch, an intended filter, an incomplete log, or an event still in flight. It does not certify a lost sale or justify charging the full order value as recovered revenue. The checker also cannot verify that your Shopify source list is complete.
What to investigate next
| Observed | Next evidence to verify |
|---|---|
| Order in Shopify, no n8n execution | Subscription/topic/filter, production URL, Shopify delivery logs, webhook arrival logs, delay and aligned export windows |
| Repeated execution or repeat receipt | Retries, idempotency key, existing downstream side effects; do not blindly replay |
| Execution succeeded, no receipt | Destination system lookup, retries, downstream lag, status mapping, partial writes |
| Execution failed, no receipt | Failure logs and recovery policy; a missing receipt alone is not an extra rule violation |
| All three exports match | Source completeness and downstream state still need independent confirmation; clean joins are not a certification |
Start with Shopify's own delivery logs and a basic spreadsheet comparison if that already solves your question. Use Moruneva only when a safe, repeatable comparison of three compatible snapshots helps. For production incidents, have an authorized operator confirm the next action; retries may cause duplicate business side effects.
Keep store and client data out of the checker
Shopify's Admin GraphQL Order query requires appropriate authorization and usually exposes only a limited recent history without expanded scopes. Pagination and query boundaries matter. Do not paste customer emails, shipping details, order amounts, access tokens, raw webhook payloads or private order IDs into a public webpage—even one that currently runs comparisons locally. Prepare separate pseudonymous, consistent test keys and review who may share them. Official Shopify Order API.
Compare the three snapshots locally
The free checker accepts execution CSV, receipt CSV, and an optional expected-source list. You can test this guide's fictional example without a login or an API connection. Results are investigation leads, not certified defects.
Try the fictional Shopify example ↗This one-click link loads fixed, invented records. Clear the sample before checking your own authorized, pseudonymous IDs.
Method and sources
This is independent Moruneva reference material based on public platform documentation and fictional data. It is not an account-level Shopify diagnosis, Shopify endorsement or proof of an existing merchant deployment.