GATP meets the challenge of providing availability information across a global enterprise. More complex scenarios, however, require more robust capabilities to make delivery commitments that are in line with the real-world demands. In short, global scenarios require global solutions. Following are the functionalities using GATP allows you to answer questions related to promising products to your customers.

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Version 1. Using this document Identifying new concepts This document introduces a number of new, inter-related concepts.

Because an understanding of some of these concepts relies on an understanding of other concepts, some terms may be introduced before they are fully explained. It is recommended that you read this document from beginning to end, to familiarize yourself with all concepts, and the overall content of the document. Subsequently, you may find it adequate to jump directly to single topics to refresh your understanding, as required.

Understanding the ATP diagrams This document includes a number of diagrams designed to show how sales orders and other events affect ATP levels. Each diagram charts the ATP level and in some cases the physical inventory level against a range of dates.

That is, the ATP on day X will only appear as the level shown on the diagram once day X has been reached. Therefore, the diagrams used in this document do not necessarily reflect what you would see if you displayed the ATP level in the system itself.

The diagrams are presented the way they are because they are conceptually easier to understand in this form. Document summary 1. An introduction to GATP 2. Availability 4. GATP at order entry 5.

How ATP is consumed 6. Available To Promise ATP is a term used in Sales and Logistics to refer to the level of inventory that is or will be available for use on a given date. ATP checking 1 considers availability at one or more plants within a sales organization. Strictly speaking, the term ATP refers to the actual available inventory level, and the term GATP refers to the system functionality that provides this information.

These terms are used in this context throughout this document. Because GATP is examining future availability, it naturally sits within the planning system. Allocation vs. Whereas availability considers the total amount of inventory available, allocation considers the amount of product that will be made available to individual customers. Put simply, availability is a check against inventory, and allocation is a check against a predetermined amount that has been reserved "allocated" for a customer based on forecast, historical offtake, or other business- specific basis.

ATP refers to product that is both available and allocable capable of being allocated. GATP can be activated for availability checks, or for allocation checks, or for both. Availability ATP vs. For example, even though there may be 1, units of a product physically located in the warehouse, this does not necessarily mean that all 1, units are available. When GATP checks inventory, it first determines the requirements date q. This is the date on which the product must be available in inventory, in order to meet the requested delivery date.

The requirements date is determined by working back from the requested delivery dated, taking into account all applicable lead times. If the requested quantity is not available on the requirements date, the system find the earliest date on which the required Understanding GATP Page 4 of 19 quantity is available, and then re-applies the lead times to move this date forward and obtain a confirmed delivery date.

This is summarized in the following diagram: Figure 1: Checking availability backwards then forwards In this example, an order is entered Event 2 on Day 2, for 40 units, with a requested delivery date of Day 6. The system works back from the requested delivery date, taking into account the total lead time, to determine the requirements date Event 3 of Day 4.

The system then goes forward from this, based on the previously-calculated lead time, to determine a confirmed delivery date Event 5 of Day 7. Note that in this example, that even though there was sufficient ATP on the requested delivery date, GATP could only confirm a delivery date of the day after the requested delivery date.

Determining the requirements date The requirements date is determined by working back from the requested delivery date which is the date on which the product is required at the ship-to location , taking into account all applicable lead times. Order scheduling calculates a number of successive dates to determine the eventual requirements date.

These dates are as follows: 1. Requested delivery date: The date on which the product should arrive at the ship-to location. This date is specified in the order. Goods issue date: The date on which the product must physically leave the shipping point in order to reach the Understanding GATP Page 5 of 19 customer on the requested delivery date. This calculated by subtracting the transit time from the requested delivery date. Loading date: The date on which the finished product must be physically available for loading onto the vehicle in order to allow the vehicle to be dispatched on the goods issue date.

This is calculated by subtracting the loading time from the goods issue date. Material availability date: The date on which the material must be available for picking and packing to start.

This is calculated by subtracting the picking and packing time from the loading date. Transportation planning date: The latest date on which transportation planning can start in order for the product to be dispatched on the goods issue date.

This is calculated by subtracting the transportation planning lead-time from the loading date. Note that both the material availability date and the transportation planning date are calculated from the loading date. This is because both transportation planning and picking and packing can take place in parallel but must both be complete by loading time. The calculation of these dates is summarized in the following diagram: Calendars Figure 2: Calculating the requirements date When determining the various dates above, the system will take into account the calendars at.





Global Available To Promise (GATP) Overview


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