Hello @IrisN. I apologize, but I'm not entirely sure what type of post you are asking about. Were you asking about our Facebook Advertisting service? With that, the minimum amount of time would be 14 days for an ad to be posted on Facebook and we do not offer a 7 day advertisement. If you do have any additional questions about this service, you can reach our Facebook Advertisting team at 855-816-6502 from 8am-9pm ET Monday through Friday.