Wildcards can be used as highly confidential basic substances. However, it is forbidden to use them to replace basic substances that are subject to declaration (D) or even prohibited substances (P).
The addition "not to declare" is used to make this clear to the user.

Please always remember to comply with Rule 4.5.2.B of IMDS Guideline 001:
If a GADSL update changes the status of basic substances which are marked as confidential in a material MDS, the respective material MDS must be updated accordingly so that the basic substance is no longer marked as confidential. The affected MDBs must also be updated along the supply chain.

Since the GADSL can change at any time and therefore materials with wildcards must be checked regularly, we recommend to mark basic substances as confidential instead of using a wildcard.

Confidential basic substances, which have to be declared afterwards, can easily be found in the IMDS with the Where-Used analysis.
Select the analysis type "confidential basic substances".

Determine the origin of the MDS to be checked and then click on the "Analysis" button.
MDBs will be listed which contain confidentially marked basic substances which are now marked as D, D/P, or P in the GADSL category.