EIM solutions spent a considerable amount of time to understand the manner the SAP logic of checking for component availability on production orders and subcontract purchase orders.
To keep this exact same logic, a custom function module was developed that served as a wrapper for the SAP function module that carried out the availability check.
This custom development used standard SAP configuration to check for available stock in inventory management.
At the conclusion of the availability check, a similar check was conduct for warehouse stock. To make this a flexible definition for the customer, a custom table was introduced to define the stock types that could be considered available in warehouse management.
The result was presented to the customer as a summary per purchase requisition or planned order along with a detailed listing of all components per order.
This enabled the customer to evaluate availability across multiple orders and take decisions on creation or production orders and purchase orders.