Sales order--->delivery note--->Sales invoice

hello Every one here is my suggestion
first sales order
then delivery note
after that sales invoice
and these should be connected
like sales order no show on delivery by coping
and sales order no or delivery no shows on sales invoice

this is already possible.
use the Copy To button when viewing any document.

image

Not really because qty remain same
or if you copy delivery note to sales invoice it does not show any status or invoice no so we know that this delivery note is invoiced currently i need to putt manual invoice no on delivery note and qty should be subtract so we know that qty which is delivered or remain qty in sales order

@sardar_talha note that you just described the workflow preferred by your business while other businesses will have different ones. Manager tries to support varying workflows based on what you Enabled in Customize. The activated ones then appear in Copy to lists as shown by @sharpdrivetek such as delivery note, new goods receipt etc.

More importantly, the Sales Order is often seen as an internal document that helps several units in a business to check if the items are available (stores), price quotes are correct (finance), etc. Once these internal checks are carried out a Sales Invoice should be prepared that is based on the Sales Order and send to the client as it explains the payment conditions as well. Common options are:
a) Pay full or part amount before receipt of goods and or services (many online shops)
b) Pay on goods delivery (you example)
c) Pay an X-amount of time after delivery

It therefore makes sense to have the Sales Invoice as basis for this, including creating one before the goods are delivered.