Diagnosis
Possible reasons include:

• You have not created the production line in the plant in question.


• The prerequisites of Sequencing have not been fulfilled.

Procedure
Please check the settings in Customizing and in the master data. Tocarry out Sequencing, the system requires the following data:


• In the material master record of the material in question, you must
make the necessary settings for Repetitive Manufacturing in the MRPviews - especially a production version.

• You must define a line hierarchy in
line design and create a valid line balancingfor the current period.