How To Fix EL308 - Only one entry permissible

SAP Error Message - Details

• Message type: E = Error

• Message class: EL - IS-U meter reading data processing

• Message number: 308

• Message text: Only one entry permissible

What causes this issue?

It does not make sense to enter both items in the table, since only one
method is implemented - SM orders are generated either at device
location level or at connection object level, but never at both levels.

System Response

The transaction terminates if you attempt to enter both alternatives.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EL308 - Only one entry permissible ?

  The SAP error message EL308 "Only one entry permissible" typically occurs in the context of data entry or configuration within the SAP system, particularly when dealing with certain fields or tables that are designed to accept only a single entry. This error can arise in various modules, including but not limited to logistics, finance, or master data management.
  Cause:
  The error is triggered when a user attempts to enter multiple entries in a field or table that is restricted to a single entry. This can happen in scenarios such as:
  
  Trying to assign multiple values to a field that only allows one (e.g., a unique identifier).
  Attempting to create multiple records in a context where only one record is allowed.
  Configuration settings that enforce a one-to-one relationship between entities.
  
  Solution:
  To resolve the EL308 error, consider the following steps:
  
  
  Review Input Data: Check the data you are trying to enter. Ensure that you are not inadvertently trying to input multiple entries where only one is allowed.
  
  
  Field Restrictions: Identify the specific field or table that is causing the error. Review the documentation or field attributes to understand the restrictions.
  
  
  Correct Data Entry: If you find that you have entered multiple values, modify your input to comply with the single-entry requirement. This may involve:
  
  Removing duplicate entries.
  Consolidating data into a single entry if applicable.
  
  
  
  Check Configuration: If you are a system administrator or have access to configuration settings, review the relevant configuration to ensure that it is set up correctly. This may involve:
  
  Adjusting settings to allow multiple entries if that is appropriate for your business process.
  Ensuring that the data model aligns with the intended use case.
  
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the module or transaction you are working with.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes depending on the context (e.g., MM, SD, FI).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the EL308 error and implement a solution to resolve it.