Dynamics 365 Business Central: Displaying Sales Lines Attachments in a Factbox of Sales Order (42, Document) page

Dynamics 365 Business Central

FactBoxes display content on the right side of a page and can show related information to main content.
Attachments can be added to Sales Lines as well as Sales Header in Dynamics 365.
There is no default FactBox to display attachments for Sales Lines, but customization is possible.
By adding a Document Attachment Factbox and linking it using standard fields, attachments for Sales Lines can be displayed.
The Provider Property sets the provider for a FactBox, enabling a link from a control to the FactBox.
Special processing in the trigger OnDrillDown of NumberOfRecords in the "Document Attachment Factbox" page can cause issues with empty pages when clicking on the number of attachments.
Subscribing to the related event and inserting logic can solve the issue of empty pages when clicking on attachments.
The provided source code on Github can be used as a reference for implementing the described approach.

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