Hi
Yes . Joom Donation come with two events : OnAfterStoreDonor and OnAfterPaymentSucess . For more details about these events, please look at :
Joom Donation plugins development
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The source code of Joom Donation is completely open, written follow MVC programing model of Joomla, so you can find the code and modify it easily to meet your requirement .
Thanks and looking forward to receiving your order .
Best regards,
Tuan