Hi Janis,
thanks, you helped me to shortage the investigation hole.
First to answer your question - no, I'm not aware of any possible way for playing with the formAI_CRM_IM_FULL_DATA_PRINT_FORM from the GUI directly (i.e.t.code Smartforms) - because of a lack of data passed to the form. I'm able to display long text from the incident via tr.code CRMD_ORDER -> Object assigned to me -> .... select proper incident -> Texts -> Log (selected text type) -> Text Detail (icon). The Cyrillic is properly shown.
After checking and playing a bit with PDF-customizing in report RSTXPDF3 I found check "USE_CASCADING = On" helps for 'message subject'.correct conversion. Long text is still not correctly converted.
It seems the conversion is spoled in an earlier stage - while OTF data is generated. It can be observed using check "SAVE_OTF_SPOOL = On" in the same customizing report and checking the spool content after calling the form from the browser.
Furthermore - font in use (ISO-5 Courier Cyrillic) is imported into our system - by default.
Any other hints are welcome.
Thanks again.
Ivaylo