How To Fix E2151 - No value check is carried out on the screen for this data type

E2151 - Overview

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 151

• Message text: No value check is carried out on the screen for this data type

What causes this issue?

You can define allowed default values for a domain for data types CHAR,
NUMC, DEC, INTi. However, the DYNP processor only checks the input
values in the mask for data types CHAR and NUMC.

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?

If you need a value check in the mask, use data type CHAR and NUMC.
If you need type DEC or INTi fields, you currently have to program the
value check yourself.
F4 functionality (possible entries) is supported for all data types.

Error message extract from SAP system. Copyright SAP SE.

E2151 - Details

• The SAP error message E2151, which states "No value check is carried out on the screen for this data type," typically occurs when a field in a screen (such as a selection screen or a dialog screen) is defined in a way that does not allow for value checks or validations. This can happen for various reasons, including the data type of the field or the way the field is defined in the screen layout.
  
  Cause:
  
  Data Type Definition: The field may be defined with a data type that does not support value checks. For example, certain data types like CHAR or STRING may not have predefined value checks.
  Screen Field Attributes: The attributes of the screen field may not be set to perform value checks. This can happen if the field is defined as an input field without any associated value checks or domain checks.
  Domain or Data Element: The domain or data