In company setting, you can use close books, that is not an accounting close, it just password protects the file from edits being made before the closing date

Resolution for 'audited account issue: 'Can audited account be locked?' available: Yes.

The audited account 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 audited account issue yourself by looking for a resolution described in the article. If it is a complex audited account issue or you are unable to solve the issue, you may contact us by clicking here or by using other audited account support options.

For more information about resolving issues related to audited account in Quickbooks/QBO or to get support for the issue 'Can audited account be locked?', click the link below: