When you start working with SAP ALE, you see it as the core way to link various SAP systems for smooth data sharing. Application Link Enabling (ALE) packages information in standard formats and sends it across systems, whether they sit in the same network or span global sites. This keeps processes like stock updates or client details consistent. In a common arrangement, a main SAP system holds master data, and ALE sends updates to other systems either right away or in groups, so all parts stay aligned. Smaller setups use it too, for connecting modules or tying in outside partners. In consulting roles, ALE often appears in tasks where sharing data matters, such as a procurement adjustment that must show up fast in production.