QB Issue Resolution:

It’s buggy.  I think this is fixed in the latest release of your version of QB, based on reading the release notes.

Resolution for Issue 'Customer email on statement email' available: Yes (Solved).
Source: Intuit Community forum.

Customer email on statement email: 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 email
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Error Recovery for Customer email [Canada]
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