SAP ABAP Message Class O1 Message Number 638 (& is not a valid exchange type (check your entry).)
Hierarchy
BBPCRM (Software Component) BBPCRM
   CRM (Application Component) Customer Relationship Management
     CRM_APPLICATION (Package) All CRM Components Without Special Structure Packages
       OIA (Package) Exg exchanges
Attribute
Message class O1  
Short Description IS-Oil : Message pool exchanges    
Message Number 638  
Documentation status   3   The short text describes the object sufficiently
Authorization check Error Message      
Changed On 20070914   
Message Text
& is not a valid exchange type (check your entry).
History
Last changed on/by 20130531  SAP 
SAP Release Created in