How To Fix W8520 - Conversion only possible for field restrictions without entry KEY

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 520

• Message text: Conversion only possible for field restrictions without entry KEY

What causes this issue?

The existing field restrictions cannot be converted, since they contain
either the keyword KEY or values in the fields CUKY_NEW, CUKY_OLD,
UNIT_NEW, UNIT_NEW.

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?

Conversion to a combined field restriction is not yet supported for
field restrictions of this kind. You can, therefore, only change the
existing field restrictions or add/delete other field restrictions.

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 W8520 - Conversion only possible for field restrictions without entry KEY ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W8520 Conversion only possible for field restrictions without entry KEY
  
  Cause:
  This warning message typically occurs in the context of Authorization Object Field Restrictions in SAP, especially when dealing with field restrictions in roles or profiles.
  
  The message indicates that a conversion or processing step (often during role maintenance, transport, or authorization checks) is only possible if the field restriction does not contain an entry with the value "KEY".
  The value "KEY" here refers to a special placeholder or keyword used in field restrictions to indicate a key field or a special type of restriction.
  If the field restriction includes an entry with "KEY", the system cannot perform the conversion or processing as expected, hence the warning.
  
  
  When does it occur?
  
  When you try to convert or transport roles or profiles that have field restrictions containing the entry "KEY".
  During role maintenance or authorization checks where the system attempts to convert field restrictions for internal processing.
  Possibly during upgrade or migration activities involving authorization objects.
  
  
  Solution:
  
  
  Check the Field Restrictions:
  
  Go to the role or profile maintenance transaction (e.g., PFCG).
  Inspect the field restrictions for the authorization objects involved.
  Look for any entries with the value "KEY".
  
  
  
  Remove or Adjust the "KEY" Entry:
  
  If the "KEY" entry is not required or incorrectly maintained, remove it.
  If it is required, understand that the system cannot convert it automatically, and manual adjustments or alternative approaches may be necessary.
  
  
  
  Use Correct Authorization Object Settings:
  
  Ensure that the authorization objects and their field restrictions are maintained according to SAP best practices.
  Avoid using "KEY" as a field restriction value unless explicitly supported.
  
  
  
  Check SAP Notes and Documentation:
  
  Sometimes, SAP provides notes or patches that address specific issues related to authorization field restrictions.
  Search the SAP Support Portal for notes related to message W8520 or authorization field restrictions.
  
  
  
  
  Related Information:
  
  
  Authorization Objects and Field Restrictions:
  
  Authorization objects in SAP control access by combining several fields.
  Field restrictions allow further granularity by restricting values for specific fields.
  The "KEY" entry is a special case and may not be supported in all contexts.
  
  
  
  Transactions to Check:
  
  PFCG - Role maintenance.
  SU24 - Authorization default values.
  SUIM - Authorization information system.
  
  
  
  SAP Notes:
  
  Check for notes related to authorization field restrictions and conversion issues.
  Example search terms: "W8520", "field restrictions KEY", "authorization conversion warning".
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Field restriction contains entry "KEY", preventing conversion or processing.
  
  
  Effect
  Warning message W8520 during role maintenance, transport, or authorization checks.
  
  
  Solution
  Remove or adjust "KEY" entries in field restrictions; follow SAP best practices.
  
  
  Related
  Authorization objects, PFCG, SU24, SAP Notes on authorization field restrictions.
  
  
  
  
  If you provide the exact context or transaction where you see this message, I can help with more specific steps.