diff --git a/suppliers/srv/mashup.cds b/suppliers/srv/mashup.cds
index 33d607c9..3d80f0f6 100644
--- a/suppliers/srv/mashup.cds
+++ b/suppliers/srv/mashup.cds
@@ -6,13 +6,16 @@
 using { API_BUSINESS_PARTNER as S4 } from './external/API_BUSINESS_PARTNER.csn';
 extend service S4 with {
   entity Suppliers as projection on S4.A_BusinessPartner {
+    // TODO: Aliases not supported in Java, yet?
     key BusinessPartner as ID,
     BusinessPartnerFullName as name,
+
     // REVISIT: following is not supported so far in cds compiler...
     // to_BusinessPartnerAddress as city {
     //    CityCode as code,
     //    CityName as name
     // }
+
     // REVISIT: following is not supported so far in cqn2odata...
     // to_BusinessPartnerAddress.CityCode as city,
     // to_BusinessPartnerAddress.CityName as city_name,