Currently when submitting a CT600 if the HMRC servers are busy the current CCH advice is to close the screen after 4 minutes and wait for the email response from HMRC then update the CT600 status manually.

Could CCH change so when submitting a CT600 if no response is received from HMRC after a few minutes the software would set the status to pending, inform us to check again later and allow us to exit the online filing screen and then allow us to query the HMRC servers again for a response until either an accepted or rejected status is received (along with the rejected reasons if applicable).

Other tax software can do this. For example IRIS business tax has a "Query again" button in the transmit internet return screen when submitting a CT600, if a response is not given because the HMRC servers are busy, you can close the submission screen to check again later as many times as you want, the software then sends a poll request to HMRC until it gets a response or it times out. Eventually when you check again HMRC finally gives an accepted or rejected response.

A central screen similar to the Co. House submissions would also really help us track which CT600's need checking.