How To Fix CNV_IUUC_DB_CONN120 - Parallel replication not possible for table &1; no key fields specified

CNV_IUUC_DB_CONN120 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 120

• Message text: Parallel replication not possible for table &1; no key fields specified

What causes this issue?

In order to replicate a table in parallel, the system groups similar
rows together. The system uses key fields to group these rows together.

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

System Response

The system cannot parallelize table &V1& (from mass transfer ID &V2&)
because the system does not have a key field which is required to group
the rows together.

How to fix this error?

Specify at least one key field from table &V1& in the control table
IUUC_REPL_PARALL.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_IUUC_DB_CONN120 - Details

• The SAP error message CNV_IUUC_DB_CONN120 indicates that parallel replication is not possible for a specific table because no key fields have been specified. This error typically arises in the context of SAP Landscape Transformation (SLT) or SAP Data Services when trying to replicate data from one system to another.
  
  Cause:
  
  Missing Key Fields: The primary cause of this error is that the table in question does not have any key fields defined. Key fields are essential for identifying unique records in a table, and without them, the system cannot perform parallel replication.
  
  Configuration Issues: There may be issues in the configuration of the replication setup, such as incorrect table settings or missing parameters.
  Table Structure: The structure of the table may not be suitable for parallel processing, which requires a clear definition of key fields.
  
  
  Solution:
  
  
  Define Key Fields:
  
  Go to the Data Replication Configuration (DRC) in the SLT system.
  Locate the table that is causing the error.
  Ensure