SAP ABAP Message Class E2 Message Number 260 (Data type & is not allowed in the key field of a table)
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-DWB-DIC-ED (Application Component) Dictionary Maintenance
     SEDD (Package) DDIC Editor
Attribute
Message class E2  
Short Description DE Data Dictionary    
Message Number 260  
Documentation status   3   The short text describes the object sufficiently
Authorization check Error Message      
Changed On 20130531   
Message Text
Data type & is not allowed in the key field of a table
History
Last changed on/by 20140121  SAP 
SAP Release Created in