How To Fix CNV_PE_IF_RT019 - Data alias &1 is not unique parameter (ID: &2)

CNV_PE_IF_RT019 - Overview

• Message type: E = Error

• Message class: CNV_PE_IF_RT - PE: Interfaces Runtime generation

• Message number: 019

• Message text: Data alias &1 is not unique parameter (ID: &2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

CNV_PE_IF_RT019 - Details

• The SAP error message CNV_PE_IF_RT019 indicates that there is a problem with the uniqueness of a data alias in the context of a data migration or conversion process. Specifically, the message states that the data alias specified (represented by &1) is not unique for the given parameter ID (represented by &2). This typically occurs in scenarios involving data transformation or migration, such as during the use of the SAP Data Migration Cockpit or other data conversion tools.
  
  Cause:
  
  
  Duplicate Data Aliases: The most common cause of this error is that there are multiple entries in the system that share the same data alias for the specified parameter ID. This can happen if the data model has not been properly defined or if there are inconsistencies in the data mapping.
  
  
  
  Configuration Issues: There may be issues in the configuration of the data migration or transformation process, leading to conflicts in how data aliases are