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

IST_EBS127 - Overview

• 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.

IST_EBS127 - Details

• 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