Below case is for not generating delivery orders for few of the partners or customers. This may be an inter company partner in case of multi company setup. 

In my case there were 4 companies with associated partner id created in res.partner. 

When i create sale order from one company by selecting the customer as other company, the DO was not generating. When i did few research, the stock location configured for the partner against the property 'property_stock_customer' in ir_property table was wrong. When i configured the correct one, the issue got resolved. 

Check the below

select res_id,value_reference from ir_property where name like '%customer%';

In my case result was as below

     res_id     |  value_reference  

----------------+-------------------

                | stock.location,9

 res.partner,1  | stock.location,15

 res.partner,18 | stock.location,17

 res.partner,18 | stock.location,45

 res.partner,16 | stock.location,31

 res.partner,17 | stock.location,38

 res.partner,35 | stock.location,45

 res.partner,52 | stock.location,17

 res.partner,15 | stock.location,24

 res.partner,35 | stock.location,65

The partner was pointed to wrong stock location which is inactive. 

In my case, the problem was due to the customer record's Invoicing->Customer Location was pointing to an INACTIVE warehouse location.  When I changed the record to point to the correct ACTIVE warehouse location, it worked.

Does anyone know how to do this in Version 10? Our delivery button has disappeared from one company, but is still visible in the other?

Does anyone know how to do this in Version 10? Our delivery button has disappeared from one company, but is still visible in the other?

Does anyone know how to do this in Version 10? Our delivery button has disappeared from one company, but is still visible in the other?

Actually It depends on Invoice Method.

You can find it in Sale Order Form, Tab Other Info, Field "Create Invoice"

If you set the type: On Demand, you will see the button "Delivery Order"