QB Issue Resolution:

In order to void invoices from the prior closed period, you may want to create customer ‘credit memo’ and then apply credit memo against the outstanding invoice.


Refer to these articles that deal with how to void checks without affecting a prior period





Resolution for Issue 'Void checks in closed period' available: Yes (Solved).
Source: Intuit Community forum.

Void checks in closed period: 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.

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