As the error message prompts, check your stock levels for any lines highlighted in Red Text on this screen.
Go to Stock Control, Stock Records (ribbon menu) or Stock Control, Records, Stock Records (classic or module menu).
Search for the stock code mentioned above and check the Free quantity.
If this is less than the amount needed for the order, zero or a negative number, then you will not be able to progress from the Warehouse Despatch until you have more free stock available.
If you do have enough stock available and are still getting this error, contact our support team. Any issues with contacting us, see the following Get support in Dimensions.