Getting your hands on (Internet Demonstration and Evaluation System) is a common goal for learners wanting to practice in a "live" sandbox environment. However, because SAP is high-end enterprise software, downloading it "for free" is not as simple as a standard app download.
Running a full ECC 6.0 IDES instance requires a powerful machine. Minimum recommended specs include: My Own SAP ECC 6.0 IDES Server (Part 1) download sap ides ecc 6.0 free
SAP previously provided a (sometimes including ECC components). While not full IDES, it includes many IDES-like datasets. Check the SAP Community or SAP Download Center (requires S-User ID). Some partners offer pre-built VirtualBox images containing ECC 6.0 IDES – but only if bundled with official trial licenses. Getting your hands on (Internet Demonstration and Evaluation