How to fix SAP error USMD2030?

What causes this issue? The system issues an error message and will not allow you to continue with this transaction until the error is resolved. System Response How to fix this error? Choose an attribute that is assigned a data element with a domain with data type CHAR, length 1.Procedure for System Administrators Error message extract from SAP system. Copyright SAP SE.

How To Fix USMD2030 - Entity type &2, UI element &1: Select an attribute with data type CHAR(1)

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SAP Error Message - Details

Message type: E = Error
Message class: USMD2 - Master Data: UI Modeling
Message number: 030
Message text: Entity type &2, UI element &1: Select an attribute with data type CHAR(1)
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What causes this issue?
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
System Response
How to fix this error?
Choose an attribute that is assigned a data element with a domain with
data type CHAR, length 1.
Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

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What is the cause and solution for SAP error message USMD2030 - Entity type &2, UI element &1: Select an attribute with data type CHAR(1) ?

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