Stop googling SAP errors. Use our Free Essentials plan instead - no credit card needed. Start Now

Close

How To Fix UCM0031 - Data from table &1 must be converted to table &2


SAP Error Message - Details

  • 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

  • Show details Hide details
  • What causes this issue?

    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!</>

    System Response

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

    How to fix this error?

    To restore consistency you need to transfer the data from table &V1& to
    the new table &V2&.

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message 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:

    1. 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.
    2. 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.
    3. 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:

    1. 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.
    2. 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.
    3. 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.
    4. 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:

    • Transaction Codes: Depending on the context of the error, you may want to check transaction codes related to data migration (e.g., LSMW, BAPIs, or custom programs).
    • SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on data conversion issues.
    • Documentation: Review SAP documentation related to data migration, data transformation, and the specific modules you are working with to understand the expected data formats and structures.

    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.

    • Do you have any question about this error?


      Upgrade now to chat with this error.


Instant HelpGet instant SAP help. Sign up for our Free Essentials Plan.


Related SAP Error Messages

Click the links below to see the following related messages:

Click on this link to search all SAP messages.


Rating
The AI Support Assistant is great. It provides comprehensive assistance even on the most difficult issues. I highly recommend this service.
Rate 1
John Jordan
SAP Consultant & Author