Problem
Usually, after posting the Sales Orders/Purchase Orders, these documents are automatically deleted. In other words, once the Purchase Orders/Sales Orders are completely received/shipped & invoiced, these documents are deleted automatically.
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Then, why I have a few Sales Order/Purchase Order still showing up in the system even if they are "completely shipped/received and invoiced"?
Solution (rather Explanation)
The Purchase Orders/Sales Orders are automatically deleted only when it is posted (completely received/shipped & Invoiced) from the document itself using the Post action on the ribbon Bar.
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The documents are not deleted when it is invoiced using the Get Receipt Line (in case of Purchase order) & Get Shipment Line function (in case of Sales Order).
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This is the reason you can still find the Sales Order/Purchase Order lying on their list page even if they are completely Received/Shipped & Invoiced.
How to delete such documents (SOs/POs) which are not automatically deleted on posting?
For such cases, you can either manually delete the documents one by one using the Delete action on the list or document page.
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OR
You can use the Delete Invoiced Sales Orders/ Delete Invoiced Purchase Orders function to delete in bulk.
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Note:
In any case, a Sales Order can only be deleted if "Shipped but Not Invoiced" is Zero.
In any case, a Purchase Order can only be deleted if "Received but Not Invoiced" is Zero.
Hope it Helps! Cheers!
Thanks for sharing valuable infomation.