How To Fix UCFE879 - The value of field &1 may not be &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UCFE - Messages for Data Entry Layouts

• Message number: 879

• Message text: The value of field &1 may not be &2

What causes this issue?

<DS:DE.UC_BREAKDOWN>Breakdown type 4</> has been defined for item &V3&
for field &V1&. However, the value of field &V1& is the default value.

System Response

The system will delete the value of field &V1&.

How to fix this error?

Enter a value for field &V1& other than the default value.

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.