How To Fix IQ181 - Historic change not permitted; object cannot be assigned

IQ181 - Overview

• Message type: E = Error

• Message class: IQ -

• Message number: 181

• Message text: Historic change not permitted; object cannot be assigned

What causes this issue?

You are trying to implement a component that was assigned to another
installed base at the time you started to maintain it, and that has
since been deimplemented. This would lead to a change in the historical
time segment that is not permitted for the components in both installed
bases.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

A error message is triggered that changes to historical time segments of
an installed base are not permitted.

How to fix this error?

Save any changes you have made so far and restart this transaction so
that a new reference time can be chosen for the implementation by the
system.

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 IQ181 - Historic change not permitted; object cannot be assigned ?

  The SAP error message IQ181, which states "Historic change not permitted; object cannot be assigned," typically occurs in the context of SAP's Information Lifecycle Management (ILM) or when dealing with data archiving and retention policies. This error indicates that an attempt is being made to change the status or assignment of an object that is considered historical, meaning it is no longer eligible for modification due to compliance or data integrity reasons.
  
  Cause:
  
  Historical Data: The object you are trying to modify has been archived or marked as historical, which means it is protected from changes to ensure compliance with data retention policies.
  Data Retention Policies: The system is configured to prevent changes to certain data that has been retained for legal or regulatory reasons.
  Incorrect Process: The operation you are trying to perform may not be allowed on historical data, such as trying to reassign a document or object that has already been