How To Fix UD647 - Unbundling of the relationships was switched off

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 647

• Message text: Unbundling of the relationships was switched off

What causes this issue?

The text for the semantic attributes of the foreign key relationship is
displayed on the relationship line with this setting. The cardinalities
are displayed above the relationship and the foreign key category below
it. The following abbreviations are used for the foreign key field
category:
KEY: key fields/candidates
TXT: key fields of a text table
REF: no key fields/candidates
no text: not specified
The relationships are bundled before they enter a table and enter the
table from the left.

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?

Error message extract from SAP system. Copyright SAP SE.