How To Fix DO191 - Fixed value definition is not allowed for data type &

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 191

• Message text: Fixed value definition is not allowed for data type &

What causes this issue?

Fixed value maintenance is not possible for the specified data type.
Values for data types CHAR, NUMC, DEC, INT1, INT2 and INT4 can be
specified for a domain. However, only in the case of data types CHAR and
NUMC is a check of the entry values on the mask carried out.

System Response

This is information.

How to fix this error?

If fixed values are defined for the domain, correct the data type or
delete the fixed values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DO191 - Fixed value definition is not allowed for data type & ?

  The SAP error message DO191, which states "Fixed value definition is not allowed for data type &," typically occurs when you are trying to define a fixed value for a data element or field that does not support fixed values. This error is often encountered in the context of data dictionary objects, such as domains or data elements, where the data type does not allow for fixed values.
  Cause:
  
  Incompatible Data Type: The data type you are trying to assign a fixed value to does not support it. For example, fixed values can usually be defined for certain data types like CHAR or NUMC, but not for types like STRING or REF TO.
  Incorrect Configuration: You may have mistakenly tried to set a fixed value for a field that is intended to be dynamic or variable.
  Data Element Definition: The data element or domain you are working with may not be configured to allow fixed values.
  
  Solution:
  
  Check Data Type: Review the data type of the field or data element you are working with. Ensure that it is compatible with fixed value definitions.
  Modify Data Element/Domain: If you need to use fixed values, consider creating a new data element or domain that supports fixed values and is compatible with your requirements.
  Remove Fixed Value Definition: If the fixed value is not necessary, you can remove the fixed value definition from the data element or domain.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific data types and their capabilities regarding fixed values.
  
  Related Information:
  
  Data Dictionary: Understanding the SAP Data Dictionary (SE11) is crucial, as it defines how data is stored and managed in the SAP system.
  Data Types: Familiarize yourself with the different data types in SAP ABAP, as each has its own rules and limitations regarding fixed values.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  
  If you continue to experience issues, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.