Replacements and substitutions
The Requisitions application lets you replace items automatically or make substitutions. Replacements for inventory items can occur automatically if replacement items are set up in the Item Master. When the requested item is not fully available and a replacement item exists, the Requisitions application automatically chooses the replacement item and places any remaining quantities for the replacement item on backorder.
Substitution is a manual process available for inventory and non-stock items. When the Requisitions application displays the message "Substitute Exists" after you add or change a requisition line, you can make a substitution. You set up substitute items in Associated Items (IC13.1).