https://launchpad.support.sap.com/#/notes/2668887
https://help.sap.com/viewer/d599f15995d348a1b45ba5603e2aba9b/2011/en-US/505856f7d9814f76a8894ec4f0d9e16e.html
https://help.sap.com/viewer/d599f15995d348a1b45ba5603e2aba9b/2011/en-US/2212e86cb3854718904db333e7b0be33.html
# To fetch the entire metadata of an instance
https://<hostname>.successfactors.com/odata/v2/?$metadata
# Fetch the metadata of specific entity
https://<hostname>.successfactors.com/odata/v2/PerPersonRelationship/?$metadata
# Fetch metata of specific entity including navigation properties
https://<hostname>.successfactors.com/odata/v2/Entity('PerPersonRelationship')/?$metadata