How To Fix RSSDA121 - Field name with suffix &1 not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSSDA - BW HANA Smart Data Access

• Message number: 121

• Message text: Field name with suffix &1 not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSSDA121 - Field name with suffix &1 not allowed ?

  The SAP error message RSSDA121, which states "Field name with suffix &1 not allowed," typically occurs in the context of data dictionary objects, particularly when working with structures, tables, or views in the ABAP Dictionary. This error indicates that a field name you are trying to use has a suffix that is not permitted according to SAP naming conventions.
  Cause:
  
  Invalid Field Naming: The field name you are trying to use has a suffix that is not allowed. In SAP, certain suffixes are reserved or have specific meanings, and using them incorrectly can lead to this error.
  Technical Names: The field name might be using a technical name that does not conform to the naming standards set by SAP.
  Field Length: The field name might exceed the maximum length allowed for field names in SAP.
  
  Solution:
  
  Check Field Naming Conventions: Ensure that the field name you are using adheres to SAP's naming conventions. Avoid using reserved suffixes or prefixes.
  Rename the Field: If the field name is invalid, consider renaming it to a valid name that does not include disallowed suffixes.
  Review Documentation: Consult the SAP documentation or the ABAP Dictionary documentation for the specific naming conventions and restrictions.
  Use Standard Naming: If you are creating custom fields, try to follow the standard naming conventions used in SAP, such as starting with a Z or Y for custom fields.
  Check for Typos: Sometimes, the error can be due to simple typographical errors in the field name. Double-check for any mistakes.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for fields, tables, and structures. This can help prevent similar errors in the future.
  ABAP Dictionary: Understanding the ABAP Dictionary and how it manages data definitions can provide insights into how to properly define fields and structures.
  SAP Notes: Check SAP Notes for any specific issues or updates related to this error message, as there may be patches or updates that address related problems.
  
  If you continue to encounter issues after following these steps, consider reaching out to your SAP support team or consulting with an experienced ABAP developer for further assistance.