You can now make a test Corporation Tax submission within Capium.
This will enable you to check whether the Corporation Tax filing will be successfully submitted to HMRC.
Therefore you can get the approval from the client, once you have done the test submission, thereby avoiding any back and forth with the client, to gain there approval again
Also, if you switch on submission notifications, https://capium.freshdesk.com/a/solutions/articles/9000235057/, you will also receive updates on the status of the test submission as well from HMRC: