How To Fix EZ757 - Global variable &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: EZ - Print workbench

• Message number: 757

• Message text: Global variable &1 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EZ757 - Global variable &1 already exists ?

  The SAP error message EZ757, which states "Global variable &1 already exists," typically occurs when there is an attempt to declare a global variable in a program or function module that has already been defined elsewhere in the same context. This can happen in ABAP programs, function modules, or classes.
  Cause:
  
  Duplicate Declaration: The most common cause is that the global variable is being declared multiple times in the same program or in included programs.
  Namespace Conflicts: If you are working in a system where multiple developers are creating global variables, there may be a conflict in naming.
  Inclusion of Multiple Files: If you are including multiple files that declare the same global variable, this can lead to the error.
  
  Solution:
  
  Check Declarations: Review the code to find where the global variable is declared. Ensure that it is declared only once. You can use the search functionality in the ABAP editor to find all instances of the variable.
  Rename the Variable: If the variable needs to be declared again, consider renaming it to avoid conflicts.
  Use Local Variables: If the variable does not need to be global, consider using a local variable instead.
  Review Includes: If you are using includes, check all included files for the variable declaration and ensure it is not being declared multiple times.
  Namespace Management: If you are working in a shared environment, establish a naming convention for global variables to avoid conflicts.
  
  Related Information:
  
  Global Variables: In ABAP, global variables are typically declared in the global declaration section of a program or function module. They are accessible throughout the program or module.
  ABAP Naming Conventions: Following naming conventions can help prevent such conflicts. For example, prefixing variable names with a specific identifier related to the module or functionality can help avoid duplication.
  Debugging: If you are unable to locate the duplicate declaration, you can use debugging tools or the ABAP runtime analysis (transaction SE30) to trace the variable's usage.
  
  By following these steps, you should be able to resolve the EZ757 error and prevent it from occurring in the future.