It could depend on the type of program.
1-2-1 and Group Rolling Calendar programs
These will update real time for clients so any changes should reflect with a client straight away. Before getting in touch can you please check the program's visibility settings?
Here's how to check your program's visibility.
If this doesn't work and this is the program type, please get in touch.
Fixed Length programs
Any changes you make will automatically update for new and old clients.
If your client can't see the program, they may need to follow this guide before getting in touch - https://intercom.help/fitr/en/articles/3815528-i-can-t-see-my-training-program
Session 1, Day 1 programs
Clients always see 7 days in advance. A new day is sent to the client at midnight each day. In effect the system is doing a refresh at that point.
If you've added training into this program today then the new training may not appear to your client until tomorrow, after which the system has 'refreshed' to show the client more.
We advise to keep more than 7 days in this program at all times to avoid any issues.
Free Trial Period
If the client is in a free trial period of a program, they'll only see up to when your trial ends. If they decide to stay, once the first payment is made they'll see more training fill into the calendar based on the visibility settings for that program.
Thanks
FITR