QB Issue Resolution:

If you received it as disk image file you have to first double click the disk image file (it will have an extension of .dmg). This will mount the disk image – which is kind of like a virtual CD. In the Finder you should see the mounted disk image (either on the desktop or in the side bar to the left of any finder window). Click on that… within that you’ll see the QuickBooks Mac application. That’s what you copy to your /Applications directory.

I’m just guessing that is the issue… could be wrong.

Resolution for Issue 'I just bought quick books small business accounting. was told by Intuit that it was compatible with new Mac Maverick, but it will not open. Have it in Applications…that is as far as I can go' available: Yes (Solved).
Source: Intuit Community forum.

I just bought quick books small business accounting. was told by Intuit that it was compatible with new Mac Maverick, but it will not open. Have it in Applications…that is as far as I can go: 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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