How To Fix CNV_20200_CHECK317 - Double mapping entry provided for source house bank ID &1 in CoCd &2

CNV_20200_CHECK317 - Overview

• Message type: E = Error

• Message class: CNV_20200_CHECK - Messages for check functions (company code merge)

• Message number: 317

• Message text: Double mapping entry provided for source house bank ID &1 in CoCd &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_20200_CHECK317 - Details

• The SAP error message CNV_20200_CHECK317 indicates that there is a double mapping entry for a source house bank ID in a specific company code (CoCd). This typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  The error arises when the system detects that the same source house bank ID has been mapped more than once for the same company code. This can happen due to:
  
  Duplicate Entries: There are multiple entries in the mapping table for the same house bank ID and company code.
  Incorrect Data Preparation: During the data preparation phase, the mapping data may have been incorrectly set up, leading to duplicates.
  
  Configuration Issues: There may be issues in the configuration of the migration project that allow for duplicate mappings.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Entries:
  
  Go to the mapping table or the relevant configuration area where the house