Hello,
Expert DB49 already answered this question.
Target version can be maintain in /n/sapapo/rel_to_oltp or target version can be set in transfer profile /n/sapapo/mc8u or /n/SAPAPO/DMP2 . If you select here Version as Active tick then forecast will be transfer in ECC as PIR in active version.
Best Regards,
R.Brahmankar