QB Issue Resolution:

You cannot.  QBSE is not even really an accounting program and cannot be upgraded to any of the other versions.  You’ll have to cancel it and start over with one of the 3 QBO versions.

Resolution for Issue 'How do I switch from qb self employed to qb small business. I am finding that Knowify does not sync with qb self employed.' available: Yes (Solved).
Source: Intuit Community forum.

How do I switch from qb self employed to qb small business. I am finding that Knowify does not sync with qb self employed.: 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 accounting program
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