The "from" Environment / Sys / Sbs / type / stage all look good. What am I missing?
The usual cause of this error is the System or the Type is not defined in the target environment and stage of the move.
Log into Endevor and go to the Type Definition screen for the From location listed in the PKMR403E error message.
At the top of the Type Definition panel is the NEXT ENV : line
1) Verify that the Next Environment and Stage ID exist.
2) Verify that the System is defined in the Next Environment and Stage
3) Verify that the Type is defined in System in the Next Environment and Stage