Solution : https://service.sap.com/sap/support/notes/527217 (SAP Service marketplace login required)
Key words :
'outlook->tools->form->design, tools->form->publish form, selecting 'form->display, sap mapi folder, ->personal forms library', form designer, corrected form, error message, object required, 'ppage' line
Related Notes :
| 314701 | Latest Outlook forms for SAP MAPI Service Provider |