At that entry, press F1 

Hopefully that help article will get you the proper format. 

I have found that generally dashes are not entered. 

If all ID begin with PT, then the PT may not be entered.

I don't do Hawaii, so just some speculation.

When you find the solution, PLEASE POST IT. 

Thank you for your suggestion.  Still does not work.  I've wasted a lot of time trying different ways to enter it in the field so that it will take.  I can only presume it's a bug.

Are you using the SSN as the missing digits?

Are you sure you have the proper number?

Have you read the instructions for the form you are filing?

For Individual:

Hawaii Tax Identification Number
If you are operating a business or practicing a profession as a sole proprietorship in Hawaii, enter your Hawaii Tax Identification Number for this activity.

If you are not operating a business or practicing a profession as a sole proprietorship in Hawaii, and do not have a Hawaii Tax Identification Number for this activity, leave the boxes blank.

Entered HI Tax ID that was provided by the state of HI for a partnership.

The number is in the format:

PT-XXX-XXX-XXX-XX

Yet, a critical e-file diagnostic is generated, "Hawaii tax identification number is invalid.  The tax ID number starts with a two letter text prefix representing the tax type, and then a twelve digit number. (ref. #52458)

I entered the number with and without the dashes, and numerous other ways and could not clear the critical diagnostic.

Contacted support and was told to Disable e-file Error, under e-file Support Tools.