What is a marketplace fulfillment error?
It is a sales channel rejecting a tracking number or shipment confirmation for an order. The order shipped, but the marketplace has not accepted the proof, so it still shows as unshipped there.
Custom Report · Operations
A marketplace fulfillment error report lists the orders where a sales channel rejected a tracking number or shipment confirmation, grouped by channel, with the reason from the log. InfiPlex flags those orders and keeps a shop log entry for every channel call, so an AI agent connected to the MCP server can count the failures per channel and read why each one happened in the same conversation.
The prompt
The flag means the channel rejected a tracking or confirmation send. The agent counts flagged orders per channel, then reads the log for the reason.
Show marketplace fulfillment errors for the last 30 days by channel, then list each failed order with the reason from the shop log.
Used InfiPlex OMS integration
9 orders have a marketplace fulfillment error in the last 30 days:
| Channel | Failed orders | What the shop log shows |
|---|---|---|
| Amazon.com | 4 | Tracking send rejected: order already canceled by the buyer (3), carrier name not accepted (1) |
| Walmart | 3 | Ship confirmation rejected: line quantity higher than the open quantity |
| eBay | 1 | Tracking send rejected: tracking number already used on another order |
| Target Plus | 1 | Ship confirmation rejected: carrier service not recognized |
Three of the four Amazon.com errors are buyer cancels that arrived after the label was bought. The Walmart orders share one cause and can be corrected together.
A rejected confirmation is an order the marketplace still counts as unshipped. This report finds them the day they happen. The failed sync watch agent runs the same check on a schedule and reports only new failures.
What is in the report
The summary is per channel; ask for the order list and each failed order comes back with its own log entry.
| Column | What it tells you |
|---|---|
| Channel | The marketplace that rejected the send |
| Failed orders | Orders carrying the marketplace fulfillment error flag |
| What the shop log shows | The response the channel returned, summarized from the log entries for those orders |
| Order (detail view) | InfiPlex order id and marketplace order number |
| Logged at (detail view) | When the failed call was made |
Make it yours
The first answer is a starting point. Each follow-up below is one more sentence in the same conversation, and the AI agent rebuilds the report from InfiPlex data each time.
Where the numbers come from
Orders carry the flag, the shop log carries the reason, and the agent joins them.
order_search marketplace_fulfillment_errorOrders flagged with a fulfillment error, with any other filterorder_search pre_built fulfillment_errors_count_by_marketplaceFailed orders per channel for the last 30 dayslog_searchShop log entries for an order or a log type, with the channel responselog_types_getThe log type ids for each channel, for example the failed tracking send typesEvery tool and its inputs are listed in the MCP tools reference. The same data is available as JSON through the InfiPlex REST API for teams that prefer a script.
Run it on a schedule
Hourly during shipping hours keeps a rejection from sitting overnight. A scheduled AI agent or a short script runs the same prompt from cron and delivers the result by email, Slack, or shared folder. The scheduled custom reports guide covers both routes, and the daily inventory by warehouse report agent is a worked example to copy.
Frequently asked
What sellers ask before they build this report on InfiPlex.
It is a sales channel rejecting a tracking number or shipment confirmation for an order. The order shipped, but the marketplace has not accepted the proof, so it still shows as unshipped there.
InfiPlex records the response to every channel call in the shop log and sets a fulfillment error flag on the order when a tracking or confirmation send is rejected.
On an API key that allows writes, yes. It can record corrected tracking after showing a preview of the change. How AI agent writes are protected explains the confirmation step.
Every channel InfiPlex sends tracking or shipment confirmations to, including Amazon, Walmart, eBay, Target Plus, Temu, and EDI retailers.
Those live in the same shop log. Ask for failed inventory sends or failed order pulls by channel and the agent searches those log types the same way.
Resources
Connect an AI agent to InfiPlex, ask for the report in plain English, and put it on a schedule. No spreadsheet exports, no report builder to learn.
Tell us which channels, warehouses, and systems you run and we will build this report with you on a live InfiPlex instance. Contact us, email info@infiplex.com, or call 888‑770‑0857.
InfiPlex™ is a trademark of InfiPlex. Marketplace, retailer, carrier, and software names are trademarks of their respective owners. InfiPlex is an independent integration provider and is not endorsed by or affiliated with any of them. Report output on this page is sample data shown in the format the InfiPlex MCP server returns. ©2026 InfiPlex. All rights reserved.