Extended CTP checksExtended CTP checks are used to explore the possibility of producing an extra quantity of an item, in addition to the existing planning. Extended CTP checks come into play if the standard ATP of a plan item is insufficient to cover a particular demand. In Enterprise Planning there are two types of extended CTP checks: You can enable or disable these checks in the Items - Planning (cprpd1100m000) session. In the ATP Handling (cprrp4800m000) session, you can temporarily disable particular checks. Component CTP A component CTP check for a plan item involves a full CTP check of the components of an item for which you selected the Critical in CTP check box in the Items - Planning (cprpd1100m000) session. Depending on the situation and on the item type, LN takes into account one of the following bills to carry out component CTP checks:
For each CTP-critical component, a full CTP check is carried out. This check can consist of various types of ATP and CTP checks, based on the settings in the Items - Planning (cprpd1100m000) session. Note that this can result in a multilevel component check, in which LN checks lower-level components as well. Note The component CTP check ignores the specification, regardless of the value of the Demand Peg Propagation field in the Bill of Material (tibom1110m000) session. LN simply presumes that all of the ATP of the components is available. Capacity CTP A capacity CTP check for a plan item involves a capacity check on each resource in the item's bill of critical capacities that is defined as critical in CTP. Combinations of checks Extended CTP checks are cumulative in nature:
Because of this cumulative nature, some caution is called for when component and capacity checks are both used for an item. If both checks succeed, this does not necessarily mean that the availability of components and capacity will exactly match in terms of time. After all, some of the available capacity can fall in a plan period in which the necessary components are not yet available.
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