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Message type: E = Error
Message class: UCM0 - Messages for Data Basis, Cons Area, ...
Message number: 031
Message text: Data from table &1 must be converted to table &2
The current generation run discovered that the structure of table &V1&
(logical name &V4&) has changed. Since the table already contains data,
the system created a new table by the name &V2&. This table corresponds
to version number &V3& for the logical object &V4&.
<ZU>The system is now inconsistent!</>
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
To restore consistency you need to transfer the data from table &V1& to
the new table &V2&.
Error message extract from SAP system. Copyright SAP SE.
UCM0031
- Data from table &1 must be converted to table &2 ?The SAP error message UCM0031 indicates that there is a data type mismatch between two tables during a conversion process. Specifically, it suggests that data from one table (denoted as &1) needs to be converted to match the structure or data type of another table (denoted as &2). This error typically arises in scenarios involving data migration, data transformation, or when using certain SAP functionalities that require data to be in a specific format.
Cause:
- Data Type Mismatch: The fields in the source table (&1) and the target table (&2) have different data types or lengths. For example, a field in the source table might be defined as a character type, while the corresponding field in the target table is defined as a numeric type.
- Inconsistent Data Formats: The data in the source table may not conform to the expected format of the target table. This can include issues like date formats, decimal separators, or character encodings.
- Missing or Extra Fields: The source and target tables may have different structures, such as missing fields in the source or additional fields in the target that are not being handled correctly.
Solution:
- Check Data Types: Review the data types and lengths of the fields in both tables. Ensure that they match or can be converted appropriately. You may need to adjust the data types in the source table or modify the target table to accommodate the incoming data.
- Data Transformation: If the data types are different, you may need to implement a transformation logic to convert the data from the source format to the target format. This can be done using ABAP code, data migration tools, or transformation rules in the SAP Data Services.
- Data Validation: Validate the data in the source table to ensure it meets the requirements of the target table. This may involve cleaning up the data, correcting formats, or handling null values.
- Adjust Mapping: If you are using a data migration tool or a custom program, check the mapping configuration to ensure that all fields are correctly mapped and that any necessary conversions are specified.
Related Information:
By addressing the underlying causes of the UCM0031 error, you can successfully convert the data from the source table to the target table without encountering this issue.
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