TOPIC:

I am using this plugin for a while with no problems, but today I have generated an invoice with an default virtuemart invoicenumber.
How is this possible? Nothing has been changed in the source, as far as I know of. And how can I prevent this to happen again?

Is the plugin still enabled, and order number customization enabled in the plugin config? Did you upgrade VirtueMart or Joomla?
Which Joomla and VirtueMart version?

Did you install any other plugin (e.g. VMinvoice by ARTIO)?

Reinhold

PS: If that invoice was for a very old order (before you started using the plugin), that would be another explanation, because the invoice number was generated back then.

Quick answer :-)

The plugin is still enabled. Order number and invoice number customization both enabled as well.
I did not upgrade joomla nor virtuemart. I am using joomla 2.5.9 and virtuemart 2.0.20b.

The invoice was for a very new order, created yesterday. Invoice created today.

I don't understand why the number has been changed, the parameters are still the same. There have to be some change somewhere...

For your information:

I have juste updated Joomla to 2.5.10 in a local test enviroment, but there the invoicenumber is also set back to default. Customized ordernumber is still correct.

Do you use any other plugin that might also try to set the invoice number (like the ARTIO VMInvoice)?

Can you maybe send me a screenshot of the exact plugin configuration, because I can't reproduce your problem here.

I don't use any other extension that set the invoice numbers. I also tried resetting the parameters, but that didn't help. Maybe a new installation of the plugin?

Attached you find a screenshot I just made.