1. The hook "after_expense_deleted"
Path: application/models/Expenses_model.php
Function: delete
Line: 469
Code: hooks()->do_action('after_expense_deleted', $id);
To remove non-existent expenses that still show up in reports, paste "admin/accounting/remove_wrong_mapping?type=expense"
2. The hook "delete_applied_credit"
Path:
application/models/Credit_notes_model.php
Function:
delete_applied_credit
Line: 553
Code: hooks()->do_action('after_applied_credit_deleted', ['id' => $id, 'credit_note_id' => $credit_id, 'invoice_id' => $invoice_id]);
3. The hook "apply_credits"
Path: application/models/Credit_notes_model.php
Function: apply_credits
Line: 801
Code: hooks()->do_action('credits_applied', ['data' => $data, 'credit_note_id' => $id, 'credit_id' => $insert_id]);