How To Fix /CFG/UI_BCW007 - Target cardinality &1 is invalid.

SAP Error Message - Details

• Message type: E = Error

• Message class: /CFG/UI_BCW -

• Message number: 007

• Message text: Target cardinality &1 is invalid.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message /CFG/UI_BCW007 - Target cardinality &1 is invalid. ?

  The SAP error message /CFG/UI_BCW007 Target cardinality &1 is invalid typically occurs in the context of SAP Business Configuration (BC) or when working with the SAP Cloud Application Studio. This error indicates that there is an issue with the cardinality settings of a business object or a relationship between business objects in your configuration.
  Cause:
  
  Invalid Cardinality Definition: The cardinality defines the number of instances of one entity that can be associated with instances of another entity. For example, a cardinality of "1" means one instance, while "0..1" means zero or one instance. If the cardinality defined in your configuration does not match the expected values, this error can occur.
  Configuration Errors: There may be inconsistencies or errors in the configuration settings of the business objects or relationships.
  Data Model Changes: If there have been recent changes to the data model or business objects, the cardinality settings may not have been updated accordingly.
  
  Solution:
  
  Check Cardinality Settings: Review the cardinality settings for the relevant business objects or relationships in your configuration. Ensure that they are set correctly according to the business requirements.
  Update Configuration: If you find any discrepancies in the cardinality settings, update them to valid values. Common cardinality settings include:
  
  1 (exactly one)
  0..1 (zero or one)
  0..n (zero or many)
  1..n (one or many)
  
  
  Validate Configuration: After making changes, validate the configuration to ensure that there are no other errors or inconsistencies.
  Consult Documentation: Refer to the SAP documentation or help resources for guidance on cardinality settings and best practices.
  Testing: After making the necessary changes, test the configuration to ensure that the error is resolved and that the system behaves as expected.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP Business Configuration and data modeling to better understand cardinality and its implications.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.