I thought of this but READ_TEXT could not be used. STXH and STXB are not populated in this case.
What I observed though is the table SOOD is updated with Code for document class, Object: Year from ID and Object: Number from ID.
Everytime I add a priovate note, this is updated.
And I can also read teh text using FM - SO_OBJECT_READ
But I am not able to find the link between the Document number (DFKKOP-OPBEL) and the table SOOD.
Thanks