The imfo in Box 13 received from my investment fund has 2 entries, one for code H and one for code AE for 6284. The TT prompt asks for an entry for codes W-ZZ, so AE for 6284 was entered. The error message reads "other entries in this section total 18211, which exceeds this entry of 6284. Please correct your entries." There are no other entries in this section.
