When i was trying to create API
@sai.vashisht have you seen this before?
This issue happens if AWS marketplace fails to send us Entitlement information. There could be two reasons.
Delayed Entitlement from AWS : In such cases usually its takes 24-48 hours. Only option is to wait.
AWS account permissions: User who bought the subscription does not have role/permission to make AWS purchase. In such cases you need to check with your AWS account admin.
OK thanks @sai.vashisht I will wait for 48 hours before retrying agian