How To Fix IU890 - Logical table &: Field name & is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 890

• Message text: Logical table &: Field name & is too long

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IU890 - Logical table &: Field name & is too long ?

  The SAP error message IU890 indicates that a field name in a logical table is too long. This typically occurs when the field name exceeds the maximum length allowed by the SAP system, which is usually 30 characters for field names in ABAP Dictionary.
  Cause:
  
  Field Name Length: The field name defined in the logical table exceeds the maximum length allowed by SAP.
  Naming Conventions: The naming conventions used for fields may not adhere to the standards set by SAP, leading to longer names.
  Custom Development: If you are working with custom tables or fields, developers may have inadvertently created field names that are too long.
  
  Solution:
  
  Shorten Field Names: Review the field names in the logical table and shorten them to comply with the maximum length requirement (30 characters).
  Rename Fields: If possible, rename the fields in the ABAP Dictionary to ensure they are within the allowed length.
  Check Naming Conventions: Ensure that the naming conventions used for fields are consistent with SAP standards to avoid future issues.
  Review Custom Code: If the error arises from custom development, review the code to ensure that field names are appropriately defined.
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal for guidelines on naming conventions and field length restrictions.
  ABAP Dictionary: Use transaction SE11 to access the ABAP Dictionary and check the definitions of the logical tables and fields.
  Error Logs: Check the error logs or dump analysis (transaction ST22) for more details on when and where the error occurs.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address similar issues or provide additional guidance.
  
  By addressing the field name length and ensuring compliance with SAP standards, you should be able to resolve the IU890 error.