How To Fix VL777 - System error: Exception in function module &

SAP Error Message - Details

• Message type: E = Error

• Message class: VL -

• Message number: 777

• Message text: System error: Exception in function module &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message VL777 - System error: Exception in function module & ?

  The SAP error message VL777, which states "System error: Exception in function module &," typically indicates that there is an issue within a function module that is being called during the processing of a transaction related to delivery or logistics. This error can arise from various underlying causes, and resolving it may require a systematic approach.
  Possible Causes:
  
  Custom Code Issues: If there are custom enhancements or modifications in the function module, they may be causing the exception.
  Data Issues: Inconsistent or corrupt data in the database can lead to exceptions when the function module tries to process it.
  System Configuration: Incorrect configuration settings in the logistics or delivery modules may lead to unexpected behavior.
  Transport Issues: If the error occurs after a transport, it may be due to missing objects or dependencies that were not transported correctly.
  SAP Notes: There may be known issues with specific versions of SAP that have been addressed in SAP Notes.
  
  Solutions:
  
  Check SAP Notes: Search for relevant SAP Notes that may address the specific function module or error. You can use the SAP Support Launchpad to find notes related to VL777.
  Debugging: If you have access to the development environment, you can debug the function module to identify the exact point of failure. This may require ABAP programming knowledge.
  Data Validation: Check the data being processed when the error occurs. Ensure that all required fields are populated and that there are no inconsistencies.
  Review Custom Code: If there are custom enhancements, review the code for any potential issues that could lead to exceptions.
  System Logs: Check the system logs (transaction SLG1) for additional error messages or stack traces that may provide more context about the error.
  Reproduce the Error: Try to reproduce the error in a test environment to better understand the conditions under which it occurs.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VL01N (Create Outbound Delivery), VL02N (Change Outbound Delivery), and VL03N (Display Outbound Delivery) to understand where the error occurs.
  Function Module Documentation: Review the documentation for the specific function module mentioned in the error message to understand its purpose and parameters.
  System Version: Ensure that your SAP system is up to date with the latest patches and updates, as many issues are resolved in newer versions.
  
  By following these steps, you should be able to diagnose and potentially resolve the VL777 error in your SAP system.