Diagnosis
The orders cannot be scheduled as the selected production line does notexist or is not valid for Sequencing.
System Response

Procedure
Enter a valid production line. Make sure that the line is contained inat least one production version. You define production versions in thematerial master record. Orders are only displayed and dispatched on theproduction line if this production line has been maintained in theactive production version. Then the planned order must also contain areference to the production version.