Advanced Available-to-promise (aATP) as introduced by SAP in 2016 is the successor of APO- GATP (Refer my blog https://blogs.sap.com/2017/05/22/future-of-apo-and-its-migration/) . aATP has been built from scratch and it took some releases to match the features of APO-GATP. aATP as of S/4HANA 2022 release provides very rich features and one of the major drivers for many of the migrations from ECC to S/4HANA.
Alternative based confirmation (ABC) is the name for location and product substitutions in aATP. Refer my blogs https://blogs.sap.com/2018/10/28/alternative-based-confirmation-abc-of-advanced-atp-in-s4hana-1809-release-for-location-substitution-of-apo-gatp/ , https://blogs.sap.com/2020/02/09/tie-breaker-logic-in-alternative-based-confirmation-abc-of-advanced-atp-aatp-in-s-4hana-1909-release/ for location substitution.
My present blog is on product substitutions and describes some real-life scenarios for some of the customers implementing aATP.Main reasons for substitution of the product are that the product as requested or ordered by the customer is
· Not available with right quantity at right place (store / warehouse/ plant) at right time
· Being phased out and replaced by another product (upgraded with new features, better quality or more sustainable etc)
aATP supports real-life complex scenarios and some of scenarios are described below.
Substitution by an upgraded product
The ordered product is not available and hence being substituted by an upgraded product (say iPhone 14 128 GB is being replaced by iPhone 14 256 GB). Below image shows that FG990 is being substituted by FG991 as displayed in fiori app ‘Review availability check result’ RACR.
A sub-item is created in the sales order for the substituted product as shown in below image. Originally ordered product ( at a higher level) is also maintained to keep the track for the actual product ordered by the customer.
Confirmation first with existing stock and then substitute
One of garden equipment manufacturers want that the existing stock should first be confirmed for the ordered product and then substitute by another product for the remaining quantity. The customer has ordered for 15 pcs of FG990 ,but only 8 pcs are available , then the remaining 7 pcs have been substituted by product FG991 as shown in below image.
RACR App also indicates that the availability has been confirmed with multiple products (with 8 ea of FG990 and 7 EA of FG991) as in below image.
Substitution by multiple products with order unit as Case (CS)
In most case, sales are done at a different unit of measurement than pc (or each ) like case (CS) as shown in below image for 3 products FG995, FG996 and FG997. Each case contains 24 each / pieces of individual products.
One of the beverage manufacturing customers wanted to substitute the ordered products by multiple products, but the confirmed quantities were coming in fractions as shown in below image. Obviously this confirmation in fractions was not acceptable to the customer and it was reported as a defect.
Standard SAP aATP also has solution to confirm the quantities only with full case (or UoM). Delivery unit for the product needs to be set as 1 CS as shown below.
Sales order then gets confirmed with multiple substituted products with full cases as shown in below image.
Exclusion of a product from a series of substitution
Normally, the product FG601 can be substituted by series of products FG602, FG603 and FG604 as shown in below product network graph.
A sales order with order quantity of 4 ea is confirmed by 1 ea of individual products FG602, FG603, FG604 as only 1 EA is available for individual products FG601, FG602, FG603 and FG604 as shown in below image from RACR app.
However, it may happen that the product FG603 is not available during 1st to 15th of May’2023 (as one its components are not available) and hence can be excluded as below in Fiori app ‘Manage exclusions’.
Subsequently the product FG603 is excluded in the sales order confirmation as shown in below image.
Product substitution is just one of the several useful features in aATP and that is the reason for aATP very demanding module / applications in S/4HANA.
This blog is based on my personal insights, observation, and tests in SAP S/4HANA 2022 release. Will appreciate your views / comment and feedback.
Source: https://www.linkedin.com/pulse/product-substitution-advanced-available-to-promise-aatp-mrinal-k-roy/?utm_source=share&utm_medium=member_ios&utm_campaign=share_via
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