Invalid or non-existent app url while creating an ad.

[魏傳耕]

So yeah I made a app and has already put on Google play, published.

and When I try to create an Ad for it through Admob, it says "Invalid or non-existent app url"

It's pretty weird because it's there! I have make sure my link was correct format

and I've notice there are heaps of similar questions but were normally posted at least a year ago, and no obvious solutions.

So, I assume it's just need to take a bit of time to let admob find out my app?

if that's the case, could you guys tell me how long it's gonna take?  Thanks

[William Ferguson]

Couple of days to a week in my experience.

William