How To Fix IDMX304 - Original input message: error reading data group &1 with field index &2

SAP Error Message - Details

• Message type: E = Error

• Message class: IDMX - Localization Mexico - Digital Invoice

• Message number: 304

• Message text: Original input message: error reading data group &1 with field index &2

What causes this issue?

The system cannot read the data extract to create the original input
message.
The group number describes the data from an organizational point of
view, which the system adds to the original input message once, or
repeats several times, as defined by Mexican law.
The field describes the position (index) within the group. The system
cannot access the relevant position within the data extract.

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

System Response

The system stops processing because the system cannot create the
character string to be signed correctly.

How to fix this error?

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 IDMX304 - Original input message: error reading data group &1 with field index &2 ?

  The SAP error message IDMX304 typically indicates an issue with reading data from a specific data group in the context of IDoc processing or data mapping. The message provides two parameters: &1, which represents the data group, and &2, which represents the field index. This error can occur in various scenarios, such as during the processing of IDocs, data imports, or when using the SAP Data Services.
  Cause
  The error can be caused by several factors, including:
  
  Data Group Configuration Issues: The specified data group may not be correctly configured or may not exist in the system.
  Field Index Problems: The field index specified may be out of range or not correspond to any field in the data group.
  Data Mapping Errors: There may be issues in the mapping configuration that lead to incorrect references to data groups or fields.
  Data Integrity Issues: The data being processed may be corrupted or not conforming to the expected structure.
  Authorization Issues: The user or process may not have the necessary permissions to access the specified data group.
  
  Solution
  To resolve the IDMX304 error, you can take the following steps:
  
  
  Check Data Group Configuration:
  
  Verify that the data group specified in the error message exists and is correctly configured in the system.
  Ensure that the data group is active and properly defined in the relevant application.
  
  
  
  Validate Field Index:
  
  Check the field index specified in the error message to ensure it is within the valid range for the data group.
  Review the structure of the data group to confirm that the field index corresponds to an existing field.
  
  
  
  Review Data Mapping:
  
  If you are using data mapping tools, review the mapping configuration to ensure that it correctly references the data group and fields.
  Make any necessary adjustments to the mapping to align with the current data structure.
  
  
  
  Inspect Data Integrity:
  
  Check the data being processed for any inconsistencies or corruption that may lead to this error.
  If applicable, validate the source data to ensure it meets the expected format and structure.
  
  
  
  Check Authorizations:
  
  Ensure that the user or process executing the operation has the necessary authorizations to access the data group and its fields.
  Review the authorization roles and profiles assigned to the user.
  
  
  
  Consult SAP Documentation:
  
  Refer to SAP documentation or support notes related to IDoc processing or the specific application you are working with for additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after performing the above checks, consider reaching out to SAP support for further assistance, providing them with the error details and context.
  
  
  
  Related Information
  
  IDoc Processing: Understanding how IDocs work in SAP can help in troubleshooting related errors.
  Data Services: Familiarity with SAP Data Services and its configuration can be beneficial if the error arises in that context.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the IDMX304 error.