QB Issue Resolution:

Yes, use the class feature under the gear>company settings>advanced. ¬†You will have to classify every transaction, but you will be able to run separate P&L’s for each dba, aka class.

Resolution for Issue 'Is there a way to setup several dba’s under one business account in Quickbooks?' available: Yes (Solved).
Source: Intuit Community forum.

Is there a way to setup several dba’s under one business account in Quickbooks?: 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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