How To Fix DA138 - Alias & already exists (on &)

DA138 - Overview

• Message type: E = Error

• Message class: DA - Dictionary: Compare, distribution, timer, instantiation

• Message number: 138

• Message text: Alias & already exists (on &)

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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DA138 - Details

• The SAP error message DA138 "Alias & already exists (on &)" typically occurs when you are trying to create an alias in the SAP system that already exists. This can happen in various contexts, such as when working with database objects, data elements, or other entities that require unique identifiers.
  
  Cause:
  
  Duplicate Alias: The most common cause of this error is that the alias you are trying to create is already in use by another object in the system.
  Incorrect Naming: You might be using a naming convention that conflicts with existing aliases.
  System Configuration: There may be system settings or configurations that prevent the creation of duplicate aliases.
  
  
  Solution:
  
  
  Check Existing Aliases: Before creating a new alias, check the existing aliases in the system to ensure that the one you want to create does not already exist. You can do this by using transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to search