I have not qualified for the aoc credit because "Educaton institution ID number (EIN) not entered. where can I enter it

You enter Filer's federal ID no. (EIN) when you enter your 1098T information. It is entered between the school address and the box 1 field. 

1. Click on the Search box on the top and type 1098T.   
2. Click on “Jump to 1098T”
3. On the "Your Education Expenses Summary" page click “edit” next to the student’s name 
4. Click "Edit" next to the school's name/Tuition entered
5. Continue until "Type in the info from your 1098-T" screen and scroll down to "Filer's federal ID no."