How To Fix WD279 - Second parameter not applied in assignments

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 279

• Message text: Second parameter not applied in assignments

What causes this issue?

You have formulated an assignment in 'target = source1 source2' format.
Source2 is ignored, so you link source1 and source2 via an operator.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Change the assignment. An assignment in the form 'target = source1 +
source2' is possible.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD279 - Second parameter not applied in assignments ?

  SAP Error Message:
  
  WD279 - Second parameter not applied in assignments
  
  Cause:
  This error typically occurs in the context of Web Dynpro ABAP programming when a method or function module is called with parameters, but the second parameter (or subsequent parameters) is not correctly assigned or passed. Specifically, in Web Dynpro, this often happens when you try to assign values to method parameters or context attributes, but the second parameter in the assignment statement is missing or incorrectly specified.
  For example, in ABAP statements like:
  CALL METHOD some_method
    EXPORTING
      param1 = value1
      param2.   " <-- missing assignment here
  or in context node attribute assignments where the second parameter (value) is not provided.
  
  Detailed Explanation:
  
  The error message indicates that the second parameter (usually the value to be assigned) is missing in an assignment or method call.
  In Web Dynpro, when you assign values to context attributes or pass parameters to methods, both the parameter name and the value must be specified.
  This error can also occur if you have a syntax error in the code where the assignment operator (=) or the value is missing.
  
  
  Solution:
  
  
  Check the method call or assignment statement where the error occurs.
  
  
  Ensure that all parameters have both the parameter name and the value assigned. For example:
  CALL METHOD some_method
    EXPORTING
      param1 = value1
      param2 = value2.  " Correct assignment
  
  
  In context attribute assignments, make sure you assign values properly:
  wd_context->get_attribute( name = 'AttributeName' ) = value.
  
  
  Review the code for missing = or missing values after parameter names.
  
  
  Use ABAP syntax check to identify the exact line causing the problem.
  
  
  
  Related Information:
  
  This error is a syntax or parameter passing error in ABAP, especially in Web Dynpro components.
  It is not related to runtime errors but to incorrect code statements.
  Always ensure that method calls and assignments follow the correct ABAP syntax.
  If you are using generated code or templates, verify that the code generation is correct.
  Refer to SAP Note or documentation on Web Dynpro method calls and context handling for best practices.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Missing or incorrect second parameter in method call or assignment.
  
  
  Solution
  Correct the code to include both parameter name and value in assignments or method calls.
  
  
  Context
  Common in Web Dynpro ABAP programming during method calls or context attribute assignments.
  
  
  
  
  If you provide the exact code snippet causing the error, I can help you pinpoint the exact correction.