1) Mass delete BPS Invoices 2) DocLink/DocAlpha

1) Is there a way to mass delete BPS Invoices? I have 1900 to delete.

2) Duplicate and triplicate Invoices have imported into Sage X3v12 p17 from DocLink/DocAlpha.  This is the second or third time it has happened.  Does anyone have advice on what might be the root cause or ideas to troubleshoot?

I personally do not have experience with DocLink/DocAlpha and there's been employee turnover that had the knowledge.