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Best Way to Reconcile 3PL and WMS Inventory Without an EDI Platform

The quick answer: A full EDI/integration platform (SPS Commerce and similar) is the right answer once you're managing dozens of trading partners on standardized 850/855/856/810 documents at real scale. If your actual problem is smaller and more specific — this warehouse's count doesn't match the…

The quick answer: A full EDI/integration platform (SPS Commerce and similar) is the right answer once you're managing dozens of trading partners on standardized 850/855/856/810 documents at real scale. If your actual problem is smaller and more specific — this warehouse's count doesn't match the ERP, or this month's freight invoice has a charge your TMS never recorded — a free file-reconciliation step, comparing the two exports you already have, answers the question today without an integration project.


Why "Just Get an EDI Platform" Is Overkill for a Lot of Teams

EDI integration platforms solve a real problem: standardizing document exchange across many trading partners so a purchase order, shipment notice, and invoice all speak the same structured format automatically. That's genuinely necessary once you're coordinating with a large number of partners on high transaction volume.

But a lot of the actual, weekly pain — a 3PL's bin count drifting from the ERP's system of record, or an accessorial charge on a freight invoice that the TMS never logged — isn't a document-standardization problem. It's a "these two spreadsheets should agree and they don't" problem, and most of it comes down to something mundane: a unit-of-measure mismatch (kilograms on one side, pieces on the other), a manual end-of-shift count that was never re-verified, or an invoice line with no matching record upstream.

Sohovi gives you a full quality report on any spreadsheet in seconds — upload your file and see exactly what needs fixing.

Standing up a full EDI platform to catch that is disproportionate. Comparing the two export files directly is not.


The Options

1. Manual Excel Comparison

What it is: VLOOKUP or manual side-by-side review between a WMS export and an ERP export, or a TMS shipment log and a carrier invoice.

Where it breaks down: Works at small row counts, but doesn't scale past a few hundred rows reliably, and a unit-of-measure mismatch is easy to miss visually — "12" reads the same whether it means cases or units.


2. A Full EDI/Integration Platform (SPS Commerce and similar)

What it does: Standardizes and automates document exchange (POs, ASNs, invoices) across many trading partners at scale.

How it differs: Solves partner-to-partner document standardization, not "does this file match that file" reconciliation for a single relationship or a single audit.

Dealbreaker: Implementation and per-partner costs are built for coordinating a real trading-partner network — not for catching a bin-count discrepancy with one 3PL, or auditing one carrier's invoice against your own TMS.

Sohovi gives you the data quality picture you need to make the case for fixing it — and to track improvement over time.


3. Sohovi's Free Reconciliation Tool + Rules — Best for the Actual, Recurring Discrepancy

What it does: Drop a WMS export next to an ERP export, or a TMS shipment log next to a carrier invoice, matched on shipment or SKU ID — no account required. It surfaces exactly which rows changed, which exist only on one side, and which are unchanged, then a Validity rule can flag disallowed accessorial charge codes or a Uniqueness rule can catch a shipment billed twice.

Best for: The specific, recurring question — "does this warehouse's count match the system of record this week" or "does this invoice match what actually shipped" — without a platform project.

Dealbreaker: No native EDI connector — this is an export-to-CSV workflow. If you need the underlying document exchange itself standardized across many partners, this doesn't replace that layer.


Comparison

| | Manual Excel | Full EDI platform | Sohovi reconciliation | |---|---|---|---| | Time to first answer | Immediate, unreliable | Weeks to months | Minutes | | Scales past a few hundred rows | No | Yes | Yes | | Standardizes documents across many trading partners | No | Yes | No | | Catches unit-of-measure / accessorial mismatches | Manual, easy to miss | Depends on setup | Yes, flagged directly | | Cost | Free | Enterprise budget | Free tool + affordable paid tiers |


How to Choose

  1. Are you coordinating high-volume, standardized documents across many trading partners? That's the case a full EDI platform is actually built for.
  2. Is the real, recurring pain a specific comparison — this week's WMS count vs. the ERP, or this invoice vs. the TMS log? That's a reconciliation problem, not a document-standardization problem, and the free tool answers it directly from the exports you already have.
  3. Do you need this to run the same way every month (post-count reconciliation, or a recurring freight-invoice audit)? Save the rule set as a Workflow (Pro) so it reapplies automatically instead of starting from scratch each cycle.

Frequently Asked Questions

Q: Can this replace our EDI setup with our carriers or 3PL? No — if your carriers or 3PL require standardized EDI document exchange, that requirement doesn't go away. This addresses a different, narrower question: once you have both files in hand, do they actually agree, and where exactly do they diverge.

Q: How does this catch a unit-of-measure mismatch specifically? Outlier detection during profiling flags quantities that are unusually large or small relative to the rest of the file — a classic signature of a kg-vs-pieces mismatch — and the reconciliation view lets you inspect the exact row rather than guessing from an aggregate total.

Q: Is this useful for customs/international shipments too? Completeness and Validity rules on a pre-filing export can catch missing HS codes or malformed fields before a customs hold — a related but separate use of the same profiling step, on the export you'd already be preparing.


If the real question is "does this week's warehouse count match the ERP" or "does this invoice match what actually shipped," the free reconciliation tool at sohovi.com/tools answers it directly, without an EDI integration project.

Sohovi validates your dataset before it enters the warehouse — catching format errors, nulls, and duplicates at the source.

Selva Santosh

Data quality, for people who ship

Selva writes practical guides on data quality, profiling, and governance to help teams ship better data.

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