Meghan Markle is asked to be careful about her marketing tactic as they may be short -lived.

The Duchess of Sussex, who announced that her lifestyle products are sold out within minutes of their launch, are reminded of being vigilant over her branding strategy.

Expert Jennifer Newton writes for Mirror: “Of course we don’t know how many products were in the first place – we don’t know how limited it was.

“But in a way, it seems that I am quite a good branding strategy because she is working on the scarcity principle. She whips the demand through the idea that the products are something to prize and that you have to wait for it – and that she will have more supplies very soon.

She noted: “The whole story at the moment, according to her, is that it has been hugely successful because everything is sold out within the hour, so people who want to get the product will be on Tenterhooks that follow when she wants to announce that there is more. It can work quite well, but I do not assume she will reveal how limited the stock was. Particularly high value products.

“The price of her jam is really the price that Fortnum and Mason charge, so it’s really at the top end with an advanced pricing. At the moment I have to say that after what looks like a pretty shaky start, the launch has been good with a bit of a beat.”

The expert added: “What Meghan will have to be careful about is that she has more product to get to people within a reasonable time frame because the more you whip people’s wish, but you do not have the products to meet this requirement, then it falls flat.”