How To Fix IST_EBS127 - The &1 field contains invalid characters

SAP Error Message - Details

• Message type: E = Error

• Message class: IST_EBS - Interface Between IS-T and External Billing System

• Message number: 127

• Message text: The &1 field contains invalid characters

What causes this issue?

The TELNUM_COMP data element must contain digits only.

System Response

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

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 IST_EBS127 - The &1 field contains invalid characters ?

  The SAP error message IST_EBS127, which states "The &1 field contains invalid characters," typically indicates that a specific field in your SAP system contains characters that are not allowed or expected for that field. This can occur in various contexts, such as during data entry, file uploads, or when processing transactions.
  Cause:
  
  Invalid Characters: The field may contain special characters, spaces, or symbols that are not permitted. For example, if the field is expected to contain only alphanumeric characters, any punctuation or special symbols would trigger this error.
  Data Format Issues: The data being entered may not conform to the expected format (e.g., numeric fields containing letters).
  Configuration Settings: The field may have specific validation rules set up in the system that restrict certain characters.
  Copy-Paste Issues: Sometimes, copying and pasting data from other sources (like Excel or web pages) can introduce hidden characters that are not visible but are invalid.
  
  Solution:
  
  Check Input Data: Review the data being entered into the field. Ensure that it only contains valid characters as per the field's requirements.
  Remove Invalid Characters: If you identify any invalid characters, remove or replace them with valid ones.
  Format Data Correctly: Ensure that the data format matches the expected format for the field (e.g., numeric, date, etc.).
  Use SAP Validation Tools: Utilize any built-in validation tools or features in SAP to check for errors before submitting data.
  Consult Documentation: Refer to the SAP documentation or help files for the specific field to understand the valid character set and format.
  Check Custom Code: If there are any custom developments or enhancements in your SAP system, review them to ensure they are not causing the issue.
  
  Related Information:
  
  Field Specifications: Check the field specifications in the relevant SAP module to understand what characters are allowed.
  SAP Notes: Look for any SAP Notes related to this error message in the SAP Support Portal, as they may provide additional insights or patches.
  User Training: Ensure that users entering data are trained on the correct formats and character restrictions for the fields they are working with.
  Debugging: If the issue persists, consider debugging the process to identify where the invalid characters are being introduced.
  
  If the problem continues after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.