How To Fix C1186 - Allowed values will be lost if you change the checking method

C1186 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 186

• Message text: Allowed values will be lost if you change the checking method

What causes this issue?

You want to change the method of checking values. This deletes all the
value you have entered as allowed so far.

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 do not want to lose these values, keep to checking method
"Allowed values".

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1186 - Allowed values will be lost if you change the checking method ?

  The SAP error message C1186, which states "Allowed values will be lost if you change the checking method," typically occurs in the context of defining or modifying a field's validation rules in the SAP system, particularly when working with data elements or domains.
  
  Cause:
  This error message is triggered when you attempt to change the checking method of a field (for example, from "Check table" to "Fixed values" or vice versa) in a way that would invalidate or remove the existing allowed values associated with that field. The checking method determines how the system validates the input for that field, and changing it can lead to the loss of previously defined allowed values.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Current Settings: Check the current checking method and the allowed values associated with the field. Understand how the existing values are being validated.
  
  
  Decide on the New Checking Method: Determine if