Guides for MSP billing

Updated 2026-10-18. Written by the maker of MSP Billing Sentinel.

• Reconcile PSA time entries to invoices
  A step-by-step method to check that every billable ticket in your PSA appears on an invoice, using two CSV exports and a spreadsheet.
• Find unbilled tickets in HaloPSA
  How to list closed HaloPSA tickets with billable time that never reached an invoice, and how to stop it happening again.
• Find unbilled time in ConnectWise Manage
  How to compare ConnectWise Manage tickets and time entries with your invoices to find billable work that was never invoiced.
• License seat reconciliation checklist
  A short monthly checklist to make sure the seats you provision for clients (Microsoft 365, security, backup) match the seats you invoice.

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More guides

• Reconcile PSA time entries to invoices
• Find unbilled tickets in HaloPSA
• Find unbilled time in ConnectWise Manage
• License seat reconciliation checklist