question

Listen for activityResult and grab the payment object. You won't be able to directly edit payment data. But if you're looking to add a line to the receipt, use the Order `Note` field. Then, you can print receipt with new note line added.

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if(requestCode == MANUAL_PAY) {
                
        Payment p = data.getParcelableExtra(Intents.EXTRA_PAYMENT);
        final String oId = p.getOrder().getId();
        new AsyncTask<Void, Void, Void>() {
                
            @Overrideprotected Void doInBackground(Void... params) {
                
                try{
                
                    Order o = mOrderConnector.getOrder(oId).setNote("TEST");
                    mOrderConnector.updateOrder(o);
                    pj = new StaticReceiptPrintJob.Builder().order(o).build();
                    pj.print(getBaseContext(), mAccount);
                }catch (Exception e) {
                
                    e.printStackTrace();
                }
                return null;
            }
        }.execute();

    }