How To Fix DBMAN132 - Nested MultiProviders: &1 in &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DBMAN - Data Manager Message Class

• Message number: 132

• Message text: Nested MultiProviders: &1 in &2

What causes this issue?

MultiProvider &v31& is part of another MultiProvider. This is not
supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Redefine the higher-level MultiProvider M by incorporating the part
provider from Multicube &v1& directly into M. This means you must change
M = C1 + C2 + C3 + &v1&
&v1& = C4 + C5
to
M = C1 + C2 + C3 + C4 + C5.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DBMAN132 - Nested MultiProviders: &1 in &2 ?

  The SAP error message DBMAN132, which states "Nested MultiProviders: &1 in &2," typically occurs in the context of SAP BW (Business Warehouse) when there is an attempt to use a MultiProvider that is itself based on another MultiProvider. This situation is not allowed in SAP BW, as it can lead to complex and inefficient queries.
  Cause:
  The error arises when:
  
  You are trying to create a query that uses a MultiProvider that is built on top of another MultiProvider.
  The system does not support nested MultiProviders due to performance and complexity issues.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Flatten the MultiProvider Structure:
  
  Instead of nesting MultiProviders, try to flatten the structure by combining the underlying InfoProviders into a single MultiProvider. This may involve creating a new MultiProvider that directly combines the necessary InfoProviders without nesting.
  
  
  
  Use InfoSets:
  
  If your use case allows, consider using an InfoSet instead of a MultiProvider. InfoSets can join data from different InfoProviders and may provide the flexibility you need without the nesting issue.
  
  
  
  Review Query Design:
  
  Check the design of your queries and ensure that they are not inadvertently referencing nested MultiProviders. Adjust the queries to point to the appropriate InfoProviders or a single MultiProvider.
  
  
  
  Data Modeling:
  
  Revisit your data modeling strategy. Ensure that your MultiProviders are designed to be as flat as possible and avoid unnecessary complexity.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to MultiProviders and query design for best practices and guidelines.
  
  
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for detailed information on MultiProviders and their limitations.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error.
  Performance Considerations: Understand that nesting MultiProviders can lead to performance degradation, so it's essential to design your data model with performance in mind.
  
  By following these steps, you should be able to resolve the DBMAN132 error and improve the efficiency of your SAP BW queries.