How To Fix UJD_EXCEPTION045 - Mapping table can only contain one &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UJD_EXCEPTION - BPC: Data Manager Exception Message Class

• Message number: 045

• Message text: Mapping table can only contain one &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJD_EXCEPTION045 - Mapping table can only contain one &1 ?

  The SAP error message UJD_EXCEPTION045, which states "Mapping table can only contain one &1," typically occurs in the context of SAP BusinessObjects or SAP BW when there is an issue with the mapping of data in a query or report. This error indicates that the mapping table is expected to contain only one entry for a specific key or identifier, but it has found multiple entries instead.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the mapping table has duplicate entries for the specified key. This can happen if the data source has not been properly cleaned or if there are issues with the data extraction process.
  Incorrect Configuration: There may be a misconfiguration in the mapping settings or the data model that leads to multiple entries being returned for a single key.
  Data Integrity Issues: There could be underlying data integrity issues in the source system that result in multiple records being created for the same entity.
  
  Solution:
  
  Check the Mapping Table: Review the mapping table in question to identify any duplicate entries. You can do this by querying the table directly in the database or using SAP tools to analyze the data.
  Data Cleansing: If duplicates are found, you will need to clean the data. This may involve removing duplicates or consolidating records to ensure that each key has a unique entry.
  Review Configuration: Check the configuration settings for the mapping in your SAP BW or BusinessObjects environment. Ensure that the mapping is set up correctly and that it aligns with the expected data model.
  Data Source Validation: Validate the data source to ensure that it is providing the correct and expected data. This may involve checking the extraction process or the data transformation logic.
  Testing: After making changes, test the query or report again to ensure that the error has been resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its knowledge base with solutions for known issues.
  Documentation: Refer to the official SAP documentation for BusinessObjects or BW for best practices on data modeling and mapping configurations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.