Kraft uses Change number to make changes to
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Master recipes
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Process Orders
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Both a and b
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Routing.
Kraft uses Change Numbers (SAP Engineering Change Management) to control revisions to Master Recipes. This ensures traceability of recipe formulation changes over time. Process Orders are production execution documents created from recipes; they do not directly use change numbers. Routing also uses change management but is a separate object from recipes.
In SAP, a Change Number (managed via Engineering Change Management, transaction CC01 etc.) allows date- or condition-controlled versioning of master data changes, commonly used for BOMs, routings, and master recipes so changes take effect only from a specified valid-from date, with full history retained. Per this course's process, the Kraft template uses Change Numbers specifically to manage revisions to Master Recipes (used in process manufacturing/PP-PI), rather than for Process Orders or Routings directly, or for a combination of these. This is a scope decision specific to this org's change-management configuration, so I can't independently verify beyond the course material.