How To Fix DT540 - Index ID must be between 1 and 3 characters in length

DT540 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 540

• Message text: Index ID must be between 1 and 3 characters in length

What causes this issue?

The various indexes to a table are distinguished by means of an index
ID. This can have between 1 and 3 characters. The ID 0 is reserved for
the primary index and may not be used for secondary indexes.

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?

Enter a 1- to 3-character index ID.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT540 - Index ID must be between 1 and 3 characters in length ?

  The SAP error message DT540, which states "Index ID must be between 1 and 3 characters in length," typically occurs when you are trying to enter an Index ID that does not meet the specified length requirements. This error is common in various SAP transactions where Index IDs are used, such as in data entry forms or configuration settings.
  
  Cause:
  The error is triggered when:
  
  The Index ID you are trying to input is either too short (0 characters) or too long (more than 3 characters).
  The Index ID may contain invalid characters or spaces that are not allowed.
  
  
  Solution:
  To resolve the DT540 error, follow these steps:
  
  
  Check the Input Length: Ensure that the Index ID you are entering is between 1 and 3 characters long. For example, valid entries could be "A", "AB", or "XYZ".
  
  
  Remove Invalid Characters: Make sure that the Index ID does not contain any special characters, spaces, or numbers (if the system