How To Fix RMST1608 - Enter a letter as the first character

SAP Error Message - Details

• Message type: E = Error

• Message class: RMST1 - RMS-TLS: Messages

• Message number: 608

• Message text: Enter a letter as the first character

What causes this issue?

INCLUDE RMS_OUTPUT_CHARACTERS OBJECT DOKU ID TX

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 RMST1608 - Enter a letter as the first character ?

  The SAP error message RMST1608, which states "Enter a letter as the first character," typically occurs in the context of entering data in a field that requires a specific format. This error is often encountered in various SAP transactions where the system expects the first character of an input to be a letter (A-Z or a-z) rather than a number or special character.
  Cause:
  The primary cause of this error is that the input field is designed to accept only alphanumeric characters, and the first character of the input does not meet this requirement. This can happen in various scenarios, such as:
  
  Entering a code, name, or identifier that starts with a number or special character.
  Incorrectly formatted data entry in fields that have specific validation rules.
  
  Solution:
  To resolve the RMST1608 error, follow these steps:
  
  
  Check Input Format: Ensure that the first character of the input you are trying to enter is a letter (A-Z or a-z). For example, if you are entering a code, make sure it starts with a letter.
  
  
  Modify Input: If your input starts with a number or special character, modify it so that it begins with a letter. For instance, if you were trying to enter "123ABC", change it to "A123BC".
  
  
  Review Field Requirements: If you are unsure about the required format for the field, refer to the documentation or help text associated with that field. This can provide guidance on what is acceptable.
  
  
  Consult with Colleagues or Support: If you continue to experience issues, consult with colleagues or your SAP support team for further assistance. They may have encountered similar issues and can provide insights.
  
  
  Related Information:
  
  Field Validation: This error is part of SAP's data validation mechanisms, which ensure that data entered into the system adheres to predefined formats and rules.
  Transaction Codes: The error can occur in various transaction codes depending on the context in which you are entering data. Familiarize yourself with the specific transaction you are using.
  SAP Notes: Check SAP Notes or the SAP Community for any updates or additional information related to this error message, as there may be specific patches or updates that address related issues.
  
  By following these steps, you should be able to resolve the RMST1608 error and successfully enter your data into the SAP system.