SAP ABAP Message Class AXT_RUNTIME_MESSAGES Message Number 016 (In a 1:1 relation, you can have only one PARENT_ID &1)
Hierarchy
WEBCUIF (Software Component) SAP Web UI Framework
   CA-GTF-EEW (Application Component) Easy Enhancement Workbench
     AXT_RUNTIME (Package) Extensibility Runtime components
Attribute
Message class AXT_RUNTIME_MESSAGES  
Short Description Extensibiltiy Runtime Messages    
Message Number 016  
Documentation status   3   The short text describes the object sufficiently
Authorization check Error Message      
Changed On 20130531   
Message Text
In a 1:1 relation, you can have only one PARENT_ID &1
History
Last changed on/by 20130531  SAP 
SAP Release Created in   700