Correct billing evidence
Distinguishes finalized invoice rows from unbilled or mixed-period evidence before any seat quantities are compared.
Free · No account · Runs locally
Microsoft Partner Center reconciliation file checker
Find out whether a Partner Center CSV is safe for fixed-fee license reconciliation before a wrong export creates dozens of false billing gaps. The checker identifies billing state, usage records, lifecycle adjustments, missing evidence, and duplicate rows.
Local CSV inspection
Check your Microsoft export before matching it
Select one Partner Center CSV. Leakage Finder inspects its structure in your browser and explains whether it is safe for a fixed-fee seat comparison.
Nothing uploaded
Drop your Partner Center CSV here
Or choose a file. CSV only, up to 10 MB and 50,000 rows.
Your CSV stays in this browser tab.
Checks structure and charge context—not customer identities.
The copied report contains counts only, never row values.
Why preflight comes first
A clean comparison starts with the right Microsoft evidence
A row can represent a recurring seat, metered consumption, a cancellation credit, or a mid-cycle adjustment. Treating every quantity as an active license makes the report look precise while producing the wrong answer.
Charge and workload context
Separates fixed-fee records from consumption and surfaces credits, cancellations, conversions, renewals, and quantity changes.
False-positive protection
Stops missing billable quantities, daily usage exports, duplicate rows, mixed workloads, and other inputs that can manufacture fake gaps.
From valid export to recoverable revenue
When the export passes, compare it against the PSA
Preflight tells you whether the Microsoft evidence is trustworthy. Leakage Finder’s full reconciliation then matches that evidence against ConnectWise, Autotask, HaloPSA, Kaseya BMS, or another PSA export to surface review-ready quantity gaps.
Does Leakage Finder upload my Microsoft Partner Center CSV?
No. The free preflight checker reads the CSV locally in your browser. The report contains structural counts and findings, not customer names, product names, filenames, or row values.
Which Partner Center export should I use for seat reconciliation?
Use a finalized new commerce invoice reconciliation export for the billing period you want to compare. Open-period or daily rated usage exports can create misleading seat variances and are flagged by the checker.
What does the preflight checker identify?
It identifies billed versus open-period evidence, fixed-fee versus usage-based records, credits and lifecycle events, missing reconciliation fields, duplicate rows, mixed currencies, and other conditions likely to create false-positive billing gaps.
Can this checker prove that a customer should be billed?
No. It validates whether the Microsoft export is suitable for comparison. A full reconciliation still needs the matching PSA billing export and human review before any billing record is changed.