How To Fix SCPR476 - Key field &1 of type "GUID/UUID" cannot be variable

SAP Error Message - Details

• Message type: E = Error

• Message class: SCPR - BC Sets

• Message number: 476

• Message text: Key field &1 of type "GUID/UUID" cannot be variable

What causes this issue?

You have tried to assign the attribute "Variable" (Get value at
activation) to the key field &V1& of table &V2&, in the customizing
object &V3& (name: '&V4&'), either actively (with the pushbutton in the
BC Set maintenance transaction), or else the attribute was set
automatically by the system when you tried to not put the field in the
BC Set. Keys cannot be completely deselected.
This field is flagged as a GUID (global unique identifier) or UUID
(universal unique identifier), which are unique, unchangeable values,
which cannot be variable at activation.

System Response

The system does not let you change from FIX (unchangeable after
activation) to "Variable", or resets the value from "Variable" to FIX,
as is usual for key fields.

How to fix this error?

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SCPR476 - Key field &1 of type "GUID/UUID" cannot be variable ?

  The SAP error message SCPR476 indicates that there is an issue with a key field of type "GUID/UUID" being treated as a variable in a context where it should not be. This typically occurs in scenarios involving data modeling, such as when defining structures, tables, or data elements in SAP systems.
  Cause:
  
  Incorrect Data Type Usage: The error arises when a GUID/UUID field is defined in a way that allows it to be treated as a variable. GUIDs/UUIDs are unique identifiers and should be treated as fixed values.
  Modeling Errors: This can happen during the modeling of data in SAP BW, HANA, or other SAP applications where the data structure is defined incorrectly.
  Configuration Issues: Sometimes, the configuration settings in the system may not align with the expected data types for certain fields.
  
  Solution:
  
  Check Field Definition: Review the definition of the field in question. Ensure that it is defined as a fixed field and not as a variable. This can usually be done in the data modeling tools or the ABAP Dictionary.
  Adjust Data Model: If you are working with a data model, ensure that the GUID/UUID fields are not set to be variable. You may need to change the properties of the field in the data model.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to properly define GUID/UUID fields in your specific context.
  Testing: After making changes, test the data model or application to ensure that the error is resolved and that the system behaves as expected.
  
  Related Information:
  
  GUID/UUID: A GUID (Globally Unique Identifier) or UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems.
  SAP Data Modeling: Understanding how to properly model data in SAP systems is crucial. This includes knowing the types of fields and their appropriate usage.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data modeling.