How To Fix CNV_10020296 - &1 &2: Single determ. from object table is not possible for cluster data

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 296

• Message text: &1 &2: Single determ. from object table is not possible for cluster data

What causes this issue?

The relationship data for &V1& &V2& is meant to uploaded from the
object table one by one at runtime. This is only possible if the data
is stored in a transparent object table. This is not the case for &V1&
&V2&. &WHAT_TO_DO&
Either choose a different determination type for &V1& &V2&, or define a
transparent object table as the storage location for the determination
data in the path parameters for &V1& &V2&.
<zh>Note:</> If the object relationships have already been written to a
cluster table, you can copy this table into a transparent object table
using transaction CNV_10020_COPY.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020296 - &1 &2: Single determ. from object table is not possible for cluster data ?

  The SAP error message CNV_10020296 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is unable to determine a single record from a cluster table due to the nature of the data structure.
  Cause:
  The error arises when the system attempts to read data from a cluster table, which is a type of database table that stores related data in a compressed format. Cluster tables can contain multiple records for a single key, making it impossible for the system to determine a single record based on the provided key. This situation often occurs when:
  
  Data Structure: The data being processed is stored in a cluster table, and the migration tool is trying to access it as if it were a transparent table.
  Key Uniqueness: The key used to access the data does not uniquely identify a single record in the cluster table.
  Data Migration Logic: The logic implemented in the migration process does not account for the multi-record nature of cluster tables.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Identify the Cluster Table: Determine which cluster table is causing the issue. You can usually find this information in the error message details.
  
  
  Review Data Model: Understand the structure of the cluster table and how the data is organized. This may involve checking the relevant data dictionary (SE11) to see how the data is stored.
  
  
  Adjust Migration Logic: Modify the data migration logic to handle cluster tables appropriately. This may involve:
  
  Using appropriate join conditions to retrieve the necessary records.
  Aggregating or filtering data to ensure that only unique records are processed.
  Implementing logic to handle multiple records if necessary.
  
  
  
  Use Alternative Methods: If the migration tool does not support direct access to cluster tables, consider using alternative methods to extract the data, such as:
  
  Writing custom ABAP programs to read the data from the cluster table and convert it into a format suitable for migration.
  Using SAP standard reports or tools that can handle cluster data.
  
  
  
  Testing: After making adjustments, thoroughly test the migration process to ensure that the error is resolved and that data integrity is maintained.
  
  
  Related Information:
  
  Cluster Tables: In SAP, cluster tables are used to store related data in a compressed format. Common examples include tables like BSEG (Accounting Document Segment) and BKPF (Accounting Document Header).
  Data Migration Tools: Familiarize yourself with the tools available for data migration in SAP, such as the SAP S/4HANA Migration Cockpit, LSMW (Legacy System Migration Workbench), and others.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.