DeNA has announced an 5★-Select Scout Limited Time Only event which takes place from July 2nd, 2020 until July 4th, 2020 for the 48 hour Select Scouts and from July 2nd, 2020 to July 9th, 2020 for the week long event.

5★-Select Scout Limited Time Only

Limited Time Only! You can team up with your favorite 5★ sync pair! Two sync pair scouts where you can choose your favorite 5★ sync pair will be available for a limited time only.5★-Select Scout 48 Hours Only! will be available for one time only.

This sync pair scout will only be available for 48 hours. After scouting the initial sync pairs, you can choose one 5★ sync pair of your liking from the featured pool of sync pairs.

5★-Select Scout One Week Only!

5★-Select Scout One Week Only! will be available for one time only. This sync pair scout will only be available for 7 days. After scouting the initial sync pairs, you can choose one 5★ sync pair of your liking from the featured pool of sync pairs.

Important

• This sync pair scout will appear once you return to the Pokémon Center after using the trial scout.
• This sync pair scout will appear once you visit the Pokémon Center after fulfilling the above conditions.
• Each of these sync pair scouts can only be used once.
• Your chosen 5★ sync pair must be claimed within a certain period. You will not be able to claim them once this period has ended.
• Please note that you cannot have two or more sync pairs that include Trainers with the same name in your team.
• To check the available sync pairs and their respective offering rates, go to the Offering Rate section on the Sync Pair Scout screen.
• Please read the Notes section under Offering Rate on the Sync Pair Scout screen before using the feature.
• This sync pair scout is available using paid gems only.
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/Scout_2060_1W_2