Filter Attachments displayed on Customer BO

[nathalie_fouche-nawrot]

Hi,

I'm trying to create 3 EC to display Attachments linked to Customers (BO); these 3 EC would be filtered according to TypeCode (standard and custom ones), however, it seems it doesn't work properly.

I have followed the last part of this article "Display selected Documents in Front End" (https://community.sap.com/t5/enterprise-resource-planning-blogs-by-members/selected-document-type/ba...), it works for a custom BO, but not for an EC of Attachments based on Customer standard BO, all attachments keep on displaying.

Here it the reuse COD_Documentlist:

The binding is correct:

Worse, is the AdvancedListPane for DocumentList (Customer.Root.AttachmentFolder.DocumentList), everything is bind correctly, but somehow, CategoryType and TypeCode values just don't display in the list...

Even if the value is actually there, in the 2nd line in "Type de document" (TypeCode) column...

The DataModel:

Is the entity Attachments untouchable? What is SAP hiding??