Connecting External Account

TLDR; Do the trial transactions need to post before I can verify them?

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Hi there - I am trying to connect my external checking account to Discover so I can pull funds from my HYSA when needed. The instant verification wasn’t working for me, so I decided to do it the manual way.

In my checking account I see the two pending trial transactions. I went to verify in Discover (both app and desktop) to input the amounts of each but there is no option for me to verify? Do I need to wait until the trial transactions post for the verify option to pop up?

I tried asking customer support but they weren’t super clear. Any help is appreciated as I am just getting a bit stressed my funds will be inaccessible.