How To Fix E2184 - Fremdschlüssel &-& ist nur in der inkludierten Tabelle änderbar

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 184

• Message text: Fremdschlüssel &-& ist nur in der inkludierten Tabelle änderbar

Was verursacht dieses Problem?

You switched in change mode to a foreign key for an included table in
name range CI_ (or SI_) or an append structure.

Systemantwort

The foreign key is only displayed. It cannot be changed.

Wie behebe ich diesen Fehler?

Only change foreign keys for such structures in the structure itself.
The change then affects the included tables as well.
In general it is possible to define the included foreign key in the
included table differently from the included table.
The special cases described above can however be seen as
application-specific or customer-specific elements of a table,
which should avoid modifying the standard table. Foreign key
maintenance in the standard table would however be a modification.

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