QB Issue Resolution:
Try two things:
Open the Customer Center and use View menu > Re-Sort List.
If that didn’t fix it, then use File menu > Utilities, and Rebuild this file. That fixes it; they become Unlinked.
Resolution for Issue 'I created invoices, tried to create statements for a customer, and Quickbooks says I have “NO CUSTOMERS”.' available: Yes (Solved).
Source: Intuit Community forum.
I created invoices, tried to create statements for a customer, and Quickbooks says I have “NO CUSTOMERS”.: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Customer
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Error Recovery for Customer [Canada]
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