QB Issue Resolution:

QB create a default a/r account for you, if you need more you create them in the chart of accounts

a/r and a/p treat names as sub accounts and transactions are segregated by name so there is rarely a need for multiple a/r or a/p accounts

Resolution for Issue 'set up account A/R' available: Yes (Solved).
Source: Intuit Community forum.

set up account A/R: 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 account AR
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Error Recovery for account AR [Canada]
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