I'm wondering if it's possible using SIM to do the following:
1. Post an AUTH_ONLY to Authorize.net
2. Merchant receives a successful response containing x_auth_code, which is stored in the merchant's db
3. Some time later (perhaps at order shipment), Post a CAPTURE_ONLY to Authorize.net, (the form contains only the following: x_type = CAPTURE_ONLY, x_auth_code = the authorization code received in the response from the AUTH_ONLY)
If this is possible, does Authorize.net show a page and/or pass a response back to the merchant to indicate if the capture was successful?