How To Fix CNV_10020187 - Determination object &1: Length &2 is greater than maximum length &3

CNV_10020187 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 187

• Message text: Determination object &1: Length &2 is greater than maximum length &3

What causes this issue?

The length of determination object &V1& was specified as &V2&. Be aware
that you cannot use the determination object within a determination path
because the largest object table allows a maximum length of &V3&.

How to fix this error?

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

For the use in a determination path define shorter determination
objects.
For the assignemnt of evaluation rules to non-transparent field
components (transaction CNV_10020_RDTOBJ) the determination object &V1&
can be used with the length of &V2&.
&HINTS&
The maximum length can be defined differently for source and target
determination objects.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020187 - Details

• The SAP error message CNV_10020187 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data transfer tools. This error indicates that a certain field (determination object) has a value whose length exceeds the maximum length defined for that field in the target system.
  
  Cause:
  
  Data Length Exceedance: The value being transferred to the target system is longer than the maximum length allowed for that specific field. This can happen if the source data has been incorrectly formatted or if the field definitions in the source and target systems do not match.
  Field Mismatches: There may be discrepancies between the source and target data models, where the source field allows for longer values than the target field can accommodate.
  Data Quality Issues: The source data may contain unexpected characters or formatting that increase the length of the data being transferred.
  
  
  Solution:
  
  Identify the Field: Check the error message