How To Fix J4090 - Permitted length for 'CHAR' is from 1 to 30

SAP Error Message - Details

• Message type: E = Error

• Message class: J4 - External Data Transfer

• Message number: 090

• Message text: Permitted length for 'CHAR' is from 1 to 30

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message J4090 - Permitted length for 'CHAR' is from 1 to 30 ?

  The SAP error message J4090, which states "Permitted length for 'CHAR' is from 1 to 30," typically occurs when you are trying to define or use a character field (CHAR) in a way that exceeds the allowed length constraints set by SAP. This error is common in various contexts, such as when defining data elements, structures, or fields in ABAP programs or database tables.
  Cause:
  The error is caused by attempting to define a character field with a length that is either less than 1 or greater than 30 characters. In SAP, the maximum length for a CHAR data type is restricted to 30 characters for certain contexts, such as when defining fields in database tables or structures.
  Solution:
  To resolve this error, you should check the definition of the character field that is causing the issue. Here are the steps you can take:
  
  
  Review Field Definition: Go to the data element or structure definition where the error is occurring. Ensure that the length of the CHAR field is set between 1 and 30 characters.
  
  
  Modify Length: If the length is set incorrectly (e.g., 0 or greater than 30), modify it to a valid length within the permitted range.
  
  
  Check Related Code: If the error occurs in ABAP code, check any variable declarations or field assignments to ensure they comply with the length restrictions.
  
  
  Recompile/Activate: After making the necessary changes, recompile or activate the affected objects to ensure that the changes take effect.
  
  
  Testing: Test the changes to confirm that the error no longer occurs.
  
  
  Related Information:
  
  Data Types in ABAP: In ABAP, the CHAR data type is used for character strings. The maximum length for CHAR fields can vary based on the context, but for many standard uses, it is limited to 30 characters.
  SAP Documentation: Refer to the official SAP documentation for more details on data types and their constraints.
  Field Lengths in Database Tables: When designing database tables, always adhere to the length restrictions to avoid runtime errors.
  
  By following these steps, you should be able to resolve the J4090 error and ensure that your character fields are defined correctly within the allowed limits.