How To Fix GDV_SNAPSHOT_METHOD018 - Actual is NULL but expected is not-NULL

SAP Error Message - Details

• Message type: E = Error

• Message class: GDV_SNAPSHOT_METHOD - Message Class for Complex Check Package

• Message number: 018

• Message text: Actual is NULL but expected is not-NULL

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message GDV_SNAPSHOT_METHOD018 - Actual is NULL but expected is not-NULL ?

  The SAP error message GDV_SNAPSHOT_METHOD018, which states "Actual is NULL but expected is not-NULL," typically occurs in the context of SAP's General Data Validation (GDV) framework. This error indicates that a certain expected value (the "expected" value) is not being met because the actual value being processed is NULL (or empty).
  Cause:
  
  Data Inconsistency: The most common cause of this error is that the data being processed does not meet the validation rules defined in the GDV framework. This could be due to missing or incomplete data in the relevant fields.
  Configuration Issues: There may be issues with the configuration of the GDV rules or the data model that is being used, leading to mismatches between expected and actual values.
  Custom Code: If there are custom enhancements or modifications in the system, they might not be handling certain scenarios correctly, leading to NULL values where they shouldn't be.
  
  Solution:
  
  Data Validation: Check the data being processed to ensure that all required fields are populated correctly. Look for any NULL values in fields that are expected to have data.
  Review GDV Configuration: Examine the GDV configuration settings to ensure that the validation rules are set up correctly. Make sure that the expected values are defined properly and that there are no discrepancies.
  Debugging: If you have access to the development environment, you can debug the process to identify where the NULL value is being introduced. This may involve checking the data flow and the logic that populates the fields.
  Consult Documentation: Review SAP documentation or notes related to GDV and the specific error message for any additional insights or known issues.
  Engage SAP Support: If the issue persists and you cannot identify the root cause, consider reaching out to SAP support for assistance. They may have additional tools or insights to help resolve the issue.
  
  Related Information:
  
  GDV Framework: The General Data Validation framework in SAP is used to enforce data integrity and validation rules across various modules. Understanding how it works can help in troubleshooting issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like SE80 for object navigation, SE37 for function modules, etc.) that can help you analyze the code and configuration.
  SAP Notes: Search for SAP Notes related to GDV and the specific error message for any patches or updates that may address the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.