It makes no mention of revenue being received in May. Read it...

It makes no mention of revenue being received in May. Read it again , only states that the campaign will start in May and then only talks about providing the opportunity to increase visibility.
in return the company doesn’t expect $$$ but expects a significant increase in the qualification of the product.

In line with the company’s strategy of seeking cost-effective go-to-market strategies, the focus on large, highly-visible box and campaign projects was realised through January and February 2023, when a total of 40,000 units of the RÉDUIT BOOST device was produced and shipped to one of the largest Beauty Box Campaign operators in the US for a campaign that will be introduced in May 2023.

Provided a unique opportunity to increase the visibility of the RÉDUIT product – with 40,000 units in the market and the launch campaign itself, the Company expects a significant increase in the qualification of the product and the brand in the market with both consumers and retail operators