Component CTP reservationsLN calculates CTP reservations when a plan item's ATP is updated, or when an item master plan is updated. Component CTP reservation LN generates a component CTP reservation in the following situation:
Note When component CTP reservations and/or capacity CTP reservations are made for a plan item, the expected additionally produced quantity of the item itself is stored as CTP reservation receipts. Calculation The component CTP reservation is computed as follows: CCR(t) = -NA(t) x RQ(t)
The requirement date for the component CTP reservation for a critical material is determined as follows: RD = PFD - LTO
LN converts the lead-time offset from workdays to calendar days. See Workdays and calendar days in Enterprise Planning. LN records the component CTP reservation in the plan period in which the requirement date falls. The component CTP reservations are subtracted from the (component) item's ATP. You can view component CTP reservations and their origin in the CTP Reservations (cprrp0111m000) session. This session is accessible through the appropriate menu of the Item Master Plan (cprmp2101m000) session.
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