How To Fix UCMI018 - Doc.type &1: Change the fixing of document field "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: UCMI - Messages for Breakdown Category, Item, Document Type, ...

• Message number: 018

• Message text: Doc.type &1: Change the fixing of document field "&2"

What causes this issue?

In document type customizing on the <ZK>Document Field Options</> tab
page, you can choose the following options for "fixing" document fields:
Temporary, default: not fixed
Temporary, default: fixed
Permanent
The sequence of the fixing options shown above represent an ascending
order (less than/greater than relationship). The following applies to
document fields that are dependent on each other: In the hierarchy of
dependencies, the fixing at the next-higher level must be greater than
or equal to the fixing at the current level.
However, in document type &v1&, the fixing of document field '&v2&' is
less than the fixing of document field '&v3&'. This is not permitted
because '&v2&' is dependent on '&v3&'.

System Response

Processing is terminated.

How to fix this error?

Go to document type &v1& and change the fixing option for document field
'&v2&'.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.