No domain or data type was defined

What causes this issue?

INCLUDE DDDOC_DIRECT_TYPE OBJECT DOKU ID TX
You did not define either a domain, a reference type or a data type
(direct type entry) for a data element.

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?

Define the data type attributes of the data element by specifying a
domain or a reference type or a data type, number of places and if
necessary decimal places.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.