How To Fix CNV_10020788 - &1 &2: comp. is defined at &3 which is outside the det. obj. (length &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 788

• Message text: &1 &2: comp. is defined at &3 which is outside the det. obj. (length &4)

What causes this issue?

According to the evaluation rule, the component is located at . The
determination object has a length of . So, the component is defined
(partly) outside the determination object.

System Response

Evaluation is not possible.

How to fix this error?

Correct the rule definition or assign a different rule.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020788 - &1 &2: comp. is defined at &3 which is outside the det. obj. (length &4) ?

  The SAP error message CNV_10020788 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a component (field) is defined in a way that its length exceeds the expected or allowed length for the target data structure.
  Cause:
  The error message CNV_10020788 is triggered when:
  
  A field in the source data has a defined length that is greater than what is allowed in the target data structure.
  The mapping of fields between the source and target systems is incorrect, leading to discrepancies in field definitions.
  There may be a misconfiguration in the data model or the migration settings.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Definitions: 
  
  Review the field definitions in both the source and target systems. Ensure that the lengths of the fields match or that the target field can accommodate the data being migrated.
  
  
  
  Adjust Data Mapping:
  
  If the mapping of fields is incorrect, adjust it to ensure that the source field is mapped to a compatible target field. This may involve changing the target field's length or type if possible.
  
  
  
  Data Cleansing:
  
  If the source data contains values that exceed the target field's length, consider cleansing the data before migration. This may involve truncating values or transforming them to fit the target structure.
  
  
  
  Modify Target Structure:
  
  If feasible, modify the target structure to accommodate the larger field lengths. This may involve changing the data model in the target system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration scenario you are working on. There may be specific guidelines or recommendations for handling such errors.
  
  
  
  Testing:
  
  After making adjustments, perform a test migration to ensure that the error is resolved and that data is being migrated correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, as it may contain specific instructions for handling data type and length issues.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution to facilitate a successful data migration.