How To Fix MJ007 - Field & has not been registered as modifiable

MJ007 - Overview

• Message type: E = Error

• Message class: MJ - Field Selection

• Message number: 007

• Message text: Field & has not been registered as modifiable

What causes this issue?

This field has not been declared modifiable.

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?

Go back to the screen listing all modifiable fields and add this new
modifiable field to the list. It is then assigned a unique number that
the system later copies to field <LS>Screen-Group1</> in the screen
groups concerned (when the screens are generated after you save your
field selection maintenance work).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MJ007 - Field & has not been registered as modifiable ?

  The SAP error message MJ007, which states "Field & has not been registered as modifiable," typically occurs in the context of the Material Management (MM) module, particularly when dealing with material master data or inventory management. This error indicates that a specific field in the system is not set up to allow modifications, which can be due to various reasons.
  Causes:
  
  Field Configuration: The field in question may be configured in such a way that it is not allowed to be modified after certain conditions are met (e.g., after a material has been posted to inventory).
  Status of the Material: The material might be in a status that restricts changes, such as being locked for changes or being in a closed period.
  User Authorizations: The user may not have the necessary authorizations to modify the field in question.
  Customizations: Custom developments or enhancements may have been implemented that restrict modifications to certain fields.
  
  Solutions:
  
  Check Field Configuration: