Our avalara account was disconnected for a few days without notice. We now have about 700 invoices that haven't been sent to customers yet, and we would like to get the tax auto calculated on those invoices. I have tried to edit via CSV import and Mass Update, but that isn't triggering the tax calc script. Is there a faster way than opening in edit and saving each invoice?

Is your tax calculation script a userevent or a client script ?

Good question -- It is however Avalara sets it up. We haven't changed anything with their processing. I can check on that later today though

I am not aware about avalara. One of the accounts might be using it, will check it out. Although if it's a userevent then you are probably not checking the checkbox run backend server scripts while doing the csv import. If it's a client script, then you either need to move the logic to some userevent. Do the csv import and inactive the userevent you created afterwards. Or if you don't want to create the userevent then create some automation probably with pyhton which will control your browser and do the edit and save for those 700+ records for you. It all depends on what the avalara script type is for tax calculation.