How To Fix CNV_10020180 - &1 &2: Source package &3 is not assigned to a main source package

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 180

• Message text: &1 &2: Source package &3 is not assigned to a main source package

What causes this issue?

The field you want to convert has <DS:DE.CNV_10020_PACKID_SOURCE>source
package number</> &V3& assigned. However no
<DS:DE.CNV_10020_PACKID_SOURCE_MAIN>main source package number</> could
be determined for this source package number.

System Response

Determination and delimitation for this field cannot be carried out
correctly.

How to fix this error?

Assign the source package number of a dependent package to the field.
&HINTS&

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

<ZH>CWB context:</> You can find the possible source package numbers and
their assignment to the main source package numbers for your package
&V4& by running transaction CNV_10030_SCENARIO.
If you did not blend a conversion package (but only the CWB basis and
the org. package, for example), an entry with package number &V4& as a
"dependent" package has automatically been created during "Initial Load
of Objects". If this is the case, you can specify &V4& as the source
package number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020180 - &1 &2: Source package &3 is not assigned to a main source package ?

  The SAP error message CNV_10020180 indicates that a source package is not assigned to a main source package during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion scenarios.
  Cause:
  The error occurs when:
  
  A source package (which contains data to be migrated) is not linked to a main source package. The main source package serves as a parent or primary package that organizes and manages related source packages.
  There may be a configuration issue where the source package was not properly defined or linked in the migration project.
  The data migration process is trying to access a source package that is not recognized as part of the main structure.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Package Assignment:
  
  Go to the relevant transaction or tool where the migration is being configured (e.g., SAP S/4HANA Migration Cockpit).
  Verify that the source package in question is correctly assigned to a main source package. You may need to edit the configuration to ensure proper linkage.
  
  
  
  Review Migration Project Settings:
  
  Ensure that all necessary configurations for the migration project are complete and that all source packages are correctly defined.
  Check if the main source package is active and properly set up.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration tool you are using. This may provide insights into how to properly configure source packages and their relationships.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes or enhancements related to data migration processes.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above steps, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant configuration information.
  
  
  
  Related Information:
  
  SAP Notes: Look for SAP Notes related to data migration and the specific error message. These notes may contain additional troubleshooting steps or known issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Check SAP Community forums or other user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.