How To Fix UPWB208 - Value in property '&1' can be a maximum of 255 characters long

SAP Error Message - Details

• Message type: E = Error

• Message class: UPWB - Messages for Development Class UPWB

• Message number: 208

• Message text: Value in property '&1' can be a maximum of 255 characters long

What causes this issue?

You entered a value for attribute '&V1&'that is longer than 255
characters. At the same time, the value TRUE is set for the attribute
'generate class' of the component 'application'. As rows in the ABAP
source code can be a maximum of 255 characters long, the ABAP OO class
cannot be generated.

System Response

An ABAP OO class cannot be generated for the current Web interface.

How to fix this error?

Restrict the length of the attribute values of the Web interface to a a
maximum of 255 characters. If no ABAP OO class is generated, the length
of the attributes values is unlimited.

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.