Custom RBA with EAN - product sub

[prasnop]

Hi Experts,

I have below requirement:

Example:1

Stock situations as below:

In RBA: The rule is Product Substitution: /SPAPO/RBA04

Input product 106144000

Substitute Product 106329000

Here I would like to confirm the sales order qty from the highest available stock when the two product EAN is same.

Say for example: EAN is same - Full confirmation to the order

Customer requested order qty = 100, In this case the system has to confirm the qty from the substitute SKU - 106329000, because it is the highest available qty when there is EAN is same input and substitute SKU.

Example:2

Stock situations as below

In RBA: The rule is Product Substitution: /SPAPO/RBA04

Input product 106144000

Substitute Product 106329000

Here I would like to confirm the sale order qty from the highest available stock when the two product EAN is same.

Say for example: EAN is same - partial confirmation to that order

Customer requested order qty =100, In this case the system has to confirm the qty from the Substitute SKU which is highest when the EAN is same for both the products, that is 90 qty available. so that order confirms partially from the highest available ATP qty.

Example:3

In RBA: The rule is Product Substitution: /SPAPO/RBA04

Input product 106144000

Substitute Product 106329022

Here, I would like to confirm the order qty from the Input product first then remaining qty from Substitute SKU when there is EAN is different for both the products.

Say for example: different EAN - Confirmation sale order from input SKU first then Substitute SKU Remaining

Customer requested order qty = 100, in the case the order line item has to confirm 80 qty from the input SKU, reaming 20 qty has to confirm from the Substitute SKU.- because the EAN is different and the system has to perform as standard sap rule.

Enhancement look for:

Requirement : this above case has to work from front-end - iGATP - va01, va02 and BOP

Please let me know how can we achieve this?

Any User exists available in ECC / APO? Where all we need to enhance if it has to work from front-end and BOP? What are all the enhancements I need to build to achieve this?

Thanks