SAP ABAP Message Class IST30 Message Number 020 (Customer exit &1 in &2 is faulty. Check the customer exit.)
Hierarchy
IS-UT (Software Component) SAP Utilities/Telecommunication
   IS-T (Application Component) Industry Solution - Telecommunications
     IST00 (Package) IS-T : Domains and Repository Objects in General Use
Attribute
Message class IST30  
Short Description Contract A/R + A/P - Paying - Dunning - Disconnect..IST/FICA    
Message Number 020  
Documentation status       Space: object requires documentation
Authorization check Error Message      
Changed On 20050224   
Message Text
Customer exit &1 in &2 is faulty. Check the customer exit.
History
Last changed on/by 20050224  SAP 
SAP Release Created in