How To Fix CNV_NCE_BAS170 - 1:1 mapping is empty

CNV_NCE_BAS170 - Overview

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 170

• Message text: 1:1 mapping is empty

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_NCE_BAS170 - Details

• The SAP error message CNV_NCE_BAS170 with the description "1:1 mapping is empty" typically occurs during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of a migration project. This error indicates that there is an issue with the mapping of data from the source system to the target system, specifically that the mapping for a 1:1 relationship is not defined or is empty.
  
  Cause:
  
  Missing Mapping Entries: The most common cause is that the mapping table or configuration for the data conversion does not have entries for the specific fields or objects that are expected to have a 1:1 mapping.
  Incorrect Configuration: There may be an error in the configuration settings or the mapping logic that leads to the absence of required mappings.
  Data Model Changes: Changes in the data model between the source and target systems may lead to missing mappings if the mapping was not updated