Happy day Lisa...no, the whole partnership consists of disregarded entities as partners and this is not the first one I have entered in this return.  The pop-up error box says if one doesn't have an EIN, to trick the error away by entering "APPLD FOR" in the EIN field down in that section, which isn't true.  None will ever be applied for.  I can also trick it away by making the SSN look like an EIN, since it requires that structure, which also isn't true.  I try so hard to avoid blatantly lying on tax returns...apparently governments have views on this sort of thing 🙂 

This also has an effect on the page identifying the partnership representative. 

I called in to the much-maligned support folks and got right through.  There was no answer forthcoming.  And so I am reduced to just lying on the tax return, and will do 8 imputed interest spreadsheets in Dogecoin as penance for my sin.  So sayeth The Service.