Message type: E = Error
Message class:  CNV_DMC_UI_FW - DMC UI Framework 
Message number: 015
Message text: Length &1 not supported; &2 has a maximum length of &3
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The SAP error message CNV_DMC_UI_FW015 typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC). This error indicates that a certain field's length exceeds the maximum allowed length defined in the target system or data structure.
Cause: The error message is triggered when: You are trying to import or migrate data into a field that has a defined maximum length, and the data you are attempting to insert exceeds this length. The field in question (indicated by &2) has a maximum length (indicated by &3), and the data you are trying to input has a length of &1, which is not supported.
Solution: To resolve this error, you can take the following steps: Check Field Lengths: Review the data structure of the target system to understand the maximum length of the field that is causing the issue. This can usually be found in the data dictionary (transaction
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