When a joint submission is successfully submitted, the overall status of the joint submission is "Processing" (please note that this is different from "payment processing", which refers to the status of payment only. Payment needs to be "Paid" status prior to the overall status of the submission showing "Processing")
After the submission package is updated to "Processing" status will be transited to agencies for reviewing. This would be Day 0 (to account for submissions that may only be submitted after working hours and transition time). Generally, Day 1 would be the following working day after submission is made. e.g. if the submission is updated to "Processing" at 8pm of Friday, Day 1 will be counted from Monday (non-public holiday)
If you do not observe "Processing" status to show in your joint submission after declaration and payment have been completed successfully, please raise a helpdesk ticket for assistance.