How To Fix 28478 - Allowed values restricted by equivalence

28478 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 478

• Message text: Allowed values restricted by equivalence

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28478 - Allowed values restricted by equivalence ?

  The SAP error message 28478, "Allowed values restricted by equivalence," typically occurs in the context of data entry or configuration where a field's input is being validated against a set of predefined values or equivalences. This error indicates that the value you are trying to enter is not allowed because it does not match the expected equivalence set.
  
  Cause:
  
  Invalid Input: The value you are trying to enter does not match any of the allowed values defined in the system.
  
  Configuration Issues: The equivalence table or allowed values may not be correctly configured, leading to restrictions that prevent valid entries.
  Data Consistency: The system may have rules that restrict certain values based on the context or related data entries.
  
  
  Solution:
  
  Check Allowed Values: Review the allowed values for the field in question. You can usually find this in the configuration settings or documentation related to the specific module you are working with.
  Correct Input: Ensure that the