Can't see the free trial offer for my monthly subscription inside paywall.

I have created paywall with three product, one is single time purchase iap and other two are subscription based, (monthly, yearly, and lifetime)

after configuring the paywall using the documentation, i am able to add these 3 products in the paywall, but then i created a new offer under monthly plan subscription for 7 days free trial. i am unable to add these offer in the paywall, as it is not received by revenuecat inside their packages or product