SAP ABAP Message Class W8 Message Number 109 (Reference types '&1' and '&2' are not compatible (expression '&3'))
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-BMT-WFM (Application Component) SAP Business Workflow
     SWA (Package) Business Workflow: Expressions, binding
Attribute
Message class W8  
Short Description Workflow: Expressions, data flow    
Message Number 109  
Documentation status       Space: object requires documentation
Authorization check Error Message      
Changed On 20110908   
Message Text
Reference types '&1' and '&2' are not compatible (expression '&3')
Help Document

Diagnosis

The two partners of the value assignment in the binding must have compatible references.

If an expression or element is created with a data type reference to an ABAP Dictionary table field (data type reference "D") and the other expression or the other element references an object (data type reference "O"), a value assignment is not possible.

Constants, or expressions, which do not begin with the characters & or % are regarded as a data type reference to an ABAP Dictionary field.

Procedure

You should use the F4 input help for the binding definition.

You should only select container elements which F4 input help shows as Data type identical or data typecompatible. Such elements are highlighted with colors.

History
Last changed on/by 20110908  SAP 
SAP Release Created in