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I was told by Support team the following

document attachments functionality currently is implemented for the Customer, Vendor, Item, Employee, Fixed Asset, Resource, Job, Sales/Purchase Headers/Lines, Sales/Purchase Invoice.
Note that even the Posted Sales/Purchase Shipments don't support this feature. Manufacturing/Inventory/Warehouse documents were never included in the attachment management.


I noticed Attachment in Warehouse Receipt screen but could not attach document.

Users need supporting documents to be easily accessible like Sales/Purchase invoice.
Category: General
STATUS DETAILS
Needs Votes
Ideas Administrator

Thank you for your feedback. We are considering resolving this product suggestion through open source contributions from our community.
You can contribute by assigning yourself on following GitHub issue: https://github.com/microsoft/BusinessCentralApps/issues/580.

Sincerely, Business Central Team