MYOB API Running Slow Today

If not using invoice numbers, which is optional, we check for duplicate invoices by comparing customer and sale data including customers number if supplied, JournalMemo if supplied, ShipTo Address if supplied and CurrencyCode if supplied. TransPost will not import a sale if it matches exactly on all the criteria. A similar test is applied to other transaction types. In the latest version the same test is reapplied, after a pause, when retrying.

The problem is working out just how long the pause has to be for this to be reliable. Today it seesm to have needed to be rather long.

Yep - really annoying - something that takes 11 mins - downloading of BackOrder invoices - took 46 mins - yes there are error loops to catch but I have had to broaden these in the last month trying to resolve appalling download times for BOrder invoices - grr .....

However, the reason I posted was a very annoying thing that I am not sure how to fix - if I post an invoice or a BackOrder - something that 'does occur' but today it has happened too many times - [ and yes I know if you turn on - 'warn if duplicate invoice numbers' - this will error your post so I turn it off ]  - but when MYOB has another one of its 'Gateway timeouts' - an invoice can actually get through and be posted successfully but we still get a 'gateway error' - so my code says - 'ok try again to post' and you get a double up.

Apart from turning on 'duplicate invoice number warning' - anyone know a way to PREVENTING'

I am doing a mind exercise at the moment trying to consider so coding to check this??

The Doc