Stratford Manufacturing needs to post warehouse receipts to SAP. You will transform a JSON payload of received items into a multi-segment SAP RFC XML format. In this challenge, you will learn to apply conditional logic for batch numbers, use XML attribute selectors (`@`), check for key presence (`?`), and perform unit-of-measure conversions using a lookup table from `vars`.
Free accounts get 3 attempts per challenge, full XP, and your trail progress synced across devices.