QB Issue Resolution:
I would stay with default (accrual) basis.
You can always run reports on cash or accrual basis at your demand.
Resolution for Issue 'How should I set up? Cash or accrual?' available: Yes (Solved).
Source: Intuit Community forum.
How should I set up? Cash or accrual?: 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 Quickbooks/QBO
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