MSP billing reconciliation software
Microsoft 365 vs Kaseya BMS for MSP billing reconciliation
Microsoft 365 vs Kaseya BMS mismatches happen when vendor billing reflects real licensing changes but the Kaseya export still carries older client billing assumptions. Leakage Finder helps MSPs compare both datasets directly to expose under-billing, unbilled recurring items, and revenue leakage that standard billing reports miss.
Why mismatches happen
Where Microsoft 365 and Kaseya BMS billing drift apart
Kaseya BMS billing gaps tend to come from export-to-export drift: vendor data changes in real time while the PSA side lags because service updates are manual or delayed.
What Leakage Finder surfaces
What the audit actually shows on this comparison
The useful output is a cleaner review queue for Kaseya billing teams, not just another technical reconciliation report.
Missing Kaseya billing rows for Microsoft 365 items already present on the vendor export.
Quantity and price mismatches that point to under-billing.
Patterns of leakage across multiple clients instead of isolated one-off row issues.
Rows that need human review because product naming and client naming no longer align exactly.
Monthly workflow
How this comparison fits a real billing review process
Step 1
Export Microsoft 365 or distributor billing and the corresponding Kaseya BMS billing data.
Step 2
Compare both files line by line to surface quantity drift, naming mismatches, and missing billing rows.
Step 3
Use the flagged findings to correct Kaseya BMS, export the fix list, and rerun the audit before invoices go out.
Who should use this page
MSP owners who need proof that Microsoft 365 margin is actually making it through to Kaseya BMS invoices.
Kaseya BMS billing or finance teams responsible for turning vendor exports into accurate recurring billing.
Operations leaders who want a repeatable monthly reconciliation workflow instead of spreadsheet spot checks.
FAQ
Why do Microsoft 365 vs Kaseya BMS mismatches happen in the first place?
They usually appear when Microsoft 365 vendor billing changes before the Kaseya BMS billing record is updated. Seat adds, SKU renames, client-name drift, and manual billing maintenance all create gaps between what the MSP pays and what the client invoice reflects.
Do I need a direct Kaseya BMS integration before I can audit billing?
No. Leakage Finder is designed to start with vendor exports and Kaseya BMS billing exports, which makes it practical for MSPs that want reconciliation results now rather than waiting on a deeper integration project.
What should I do after Leakage Finder flags a mismatch in Kaseya BMS?
Review the client, product, quantity, and leakage amount, correct the billing record inside Kaseya BMS, and rerun the comparison so your team has proof that the underbilling or missing billing issue is closed before month-end.
Popular comparisons
Related compare pages
If your team works across more than one PSA workflow, use these related comparison pages to see where Microsoft 365 billing tends to drift across other MSP billing systems.
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Compare Microsoft 365 vs ConnectWise billing
See why Microsoft 365 vendor invoice CSVs and ConnectWise exports drift, which mismatches are common, and how to catch underbilling before month-end.
See the Microsoft 365 vs ConnectWise comparison →
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Compare Microsoft 365 vs Autotask billing
See why Microsoft 365 vendor invoice CSVs and Autotask exports drift, which mismatches are common, and how to catch underbilling before month-end.
See the Microsoft 365 vs Autotask comparison →
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Compare Microsoft 365 vs HaloPSA billing
See why Microsoft 365 vendor invoice CSVs and HaloPSA exports drift, which mismatches are common, and how to catch underbilling before month-end.
See the Microsoft 365 vs HaloPSA comparison →
Related reads
Related reads for MSP billing reconciliation
Why MSPs Lose Money on Microsoft 365 Billing Gaps
Why MSPs lose hundreds to thousands every month on Microsoft 365 billing gaps — and the straightforward fix.
Read the Why MSPs Lose Money on Microsoft 365 Billing Gaps guide →
How to Reconcile Microsoft CSP Billing with Your PSA
A step-by-step walkthrough for matching Microsoft CSP exports against your PSA billing data — including how to handle fuzzy name mismatches.
Read the How to Reconcile Microsoft CSP Billing with Your PSA guide →
Fuzzy Matching for MSP Billing: How It Finds What Spreadsheets Miss
Why exact matching fails MSP billing reconciliation and how fuzzy matching catches the name variations that leave unbilled licenses invisible to spreadsheets.
Read the Fuzzy Matching for MSP Billing: How It Finds What Spreadsheets Miss guide →