How To Fix RSDD_LM121 - The data types for field &1 of the CompositeProvider do not agree

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_LM - Messages for Lean Modeler (API and RSLIMO)

• Message number: 121

• Message text: The data types for field &1 of the CompositeProvider do not agree

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_LM121 - The data types for field &1 of the CompositeProvider do not agree ?

  The SAP error message RSDD_LM121 indicates that there is a mismatch in the data types for a specific field in a CompositeProvider. This typically occurs when the same field is being sourced from different InfoProviders (like InfoCubes, DataStore Objects, or other CompositeProviders) that have different data types defined for that field.
  Cause:
  
  Data Type Mismatch: The field in question has been defined with different data types in the underlying InfoProviders. For example, one InfoProvider might define the field as a character type (CHAR), while another defines it as a numeric type (NUMC).
  Field Length Differences: Even if the data types are the same (e.g., both are CHAR), differences in field lengths can also cause this error.
  Inconsistent Metadata: Changes in the metadata of the underlying InfoProviders that are not reflected in the CompositeProvider can lead to this issue.
  
  Solution:
  To resolve the RSDD_LM121 error, follow these steps:
  
  Identify the Field: Check the error message for the specific field name (denoted as &1) that is causing the issue.
  Review Data Types: Go to the underlying InfoProviders that contribute to the CompositeProvider and check the data type and length of the identified field.
  Align Data Types: Ensure that the data types and lengths of the field are consistent across all InfoProviders. You may need to:
  
  Change the data type of the field in one of the InfoProviders to match the others.
  Create a new field in the CompositeProvider that casts or converts the data type to a common type.
  
  
  Re-activate the CompositeProvider: After making the necessary changes, re-activate the CompositeProvider to ensure that the changes take effect.
  Test the CompositeProvider: Run a query or data preview on the CompositeProvider to ensure that the error has been resolved.
  
  Related Information:
  
  CompositeProvider: A CompositeProvider in SAP BW/4HANA allows you to combine data from multiple sources into a single view. It can include data from InfoProviders, other CompositeProviders, and even virtual providers.
  Data Modeling: Understanding data modeling principles in SAP BW is crucial for resolving issues related to data types and structures.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error message.
  
  By following these steps, you should be able to resolve the RSDD_LM121 error and ensure that your CompositeProvider functions correctly.