How To Fix /SAPDMC/LSMW_OBJ_040019 - A source field is required for rule '&'.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPDMC/LSMW_OBJ_040 -

• Message number: 019

• Message text: A source field is required for rule '&'.

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 /SAPDMC/LSMW_OBJ_040019 - A source field is required for rule '&'. ?

  The SAP error message /SAPDMC/LSMW_OBJ_040019 A source field is required for rule '&'. typically occurs in the context of using the Legacy System Migration Workbench (LSMW) in SAP. This error indicates that a source field has not been defined for a specific mapping rule in the LSMW project.
  Cause:
  The error is caused by one of the following reasons:
  
  Missing Source Field: The mapping rule defined in the LSMW does not have a corresponding source field specified. This means that the system cannot find the data it needs to perform the mapping.
  Incorrect Configuration: The configuration of the LSMW project may be incomplete or incorrect, leading to missing fields in the mapping rules.
  Data Structure Changes: If there have been changes in the data structure or the source file, the mapping may no longer be valid.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Rules:
  
  Go to the LSMW project and navigate to the mapping rules section.
  Identify the rule indicated by the error message (the & will be replaced by the specific rule name).
  Ensure that a source field is defined for this rule.
  
  
  
  Define Source Field:
  
  If a source field is missing, you need to define it. This can usually be done by editing the mapping rule and selecting the appropriate source field from the available fields.
  
  
  
  Review Source Structure:
  
  Ensure that the source structure (e.g., the structure of the input file) is correctly defined and matches the expected format.
  If there have been changes to the source file, update the LSMW project accordingly.
  
  
  
  Validate Configuration:
  
  Review the overall configuration of the LSMW project to ensure that all necessary fields and mappings are correctly set up.
  Check for any other errors or warnings in the LSMW project that may indicate additional issues.
  
  
  
  Test the Mapping:
  
  After making the necessary changes, test the mapping to ensure that the error is resolved and that the data is being processed correctly.
  
  
  
  Related Information:
  
  LSMW Documentation: Refer to the official SAP documentation for LSMW for detailed guidance on setting up and troubleshooting mapping rules.
  SAP Notes: Check SAP Notes for any known issues or additional troubleshooting steps related to LSMW and this specific error message.
  Community Forums: Consider visiting SAP Community forums or other user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the cause of the error message /SAPDMC/LSMW_OBJ_040019 A source field is required for rule '&'. in your LSMW project.