How To Fix WW080 - The assignment of reference material & to & cannot be changed

WW080 - Overview

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 080

• Message text: The assignment of reference material & to & cannot be changed

What causes this issue?

You are attempting to change the assignment of a reference material to
a material group. This is not possible in this case as other material
groups are also assigned to this reference material.
Moreover, this reference material is assigned the material group for
which you wish to delete the assignment in its material master. This
means that the deletion flag you are requesting cannot be set.

System Response

The system cannot carry out the change.

How to fix this error?

First change all other existing assignments; then you can change the
assignment to this material group.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW080 - The assignment of reference material & to & cannot be changed ?

  The SAP error message WW080, which states "The assignment of reference material & to & cannot be changed," typically occurs in the context of material management and is related to the assignment of reference materials in the system. This error can arise in various scenarios, such as when trying to change the reference material for a material that is already assigned or when attempting to modify certain attributes of a material that are not allowed.
  
  Cause:
  
  Reference Material Assignment: The error usually indicates that the reference material you are trying to assign or change is already linked to another material or is in a status that does not allow changes.
  Material Status: The material may be in a status that restricts changes, such as being locked for changes or being part of a production order.
  Data Consistency: SAP enforces data consistency rules, and if the reference material is being used in transactions or has