SAP Message USMD2040 - UI element &1: UI element type "attachments" not possible for ent.type &2

Diagnosis You want to create UI element &V1& with Attachments as the UIelement type. Entity type &V2& does not allow attachments since theAttachments checkbox is not selected forthis entity type in the data model. You cannot create a UI element forattachments for this entity type. Procedure Choose an entity type for which the Attachments checkbox isselected, or select the Attachments checkbox for entity type &V2&in the data model.