The ExecuteRESTService as part of WebServiceUtilities is causing the '<' in the resulting XML file to be changed to '<'.
SAP Cloud Applications Studio (SDK).
Reproducing the Issue
Calling a REST service third party webservice using WebServiceUtilities.ExecuteRESTService in absl scripting.
This method allows encoding which can change characters in the XML file.
Using ExecuteRESTServiceWithoutEncoding should resolve this issue.
XML, ExecuteRESTService, '<' , KBA , AP-RC-BDS-WS , ByDesign Studio Web Services , How To