The winter transfer window for the 2020/21 campaign closed Monday, bringing an end to what has been one of the quieter Januarys in recent years.
Spending across the Premier League was down from £230 million a year ago to £70 million, according to Deloitte, the lowest since 2010 (£30 million).
Albion's recruitment of Moises Caicedo from Independiente del Valle was one of just three permanent moves in the top tier on deadline day, while Premier League transfers were down by nearly half, from 46 to 24, compared to a year ago.
Ecuador international Moises Caicedo arrived at the Amex on a four-and-a-half year deal.
Having spent his entire domestic career playing in the Ecuadorian top-tier, the 19-year-old signed has made four senior appearances for his country, his first when he was just 18.
Also on deadline day, Chelsea defender Jack Wakely arrived on loan for the rest of the campaign. He will join up with club’s under-23 squad.
Percy Tau returned to the club after spending the last two-and-a-half years out on loan, most recently with Anderlecht, after Albion received a Governing Body Endorsement, the new points-based system for non-English players which came into force when the Brexit transition period ended.
He has since made his Premier League debut, and his arrival has seen interest in the Albion soar back in South Africa.
Albion recruited two of Poland's up and coming players in October, before they headed back out on loan to their old clubs.
Jakub Moder was recalled from Lech Poznan and has appeared on the bench in recent weeks, while Michal Karbownik is getting up to speed following his return from Legia Warsaw.
Under-23s goalkeeper Tom McGill returned from his loan with League Two Crawley Town, where he made five appearances.
Beth Roe was recalled from Women's Championship side Charlton Athletic, linking back up with Hope Powell's team and making two WSL appearances.
Goalkeeper Mat Ryan joined Arsenal on loan for the rest of the season, having made 121 appearances for Albion since his debut in 2017.
Bernardo made seven appearances for Albion this season and has joined former club Red Bull Salzburg until the end of the season.
After making his Premier League debut in the 2-1 win at Villa Park in November, Jayson Molumby made the move to Preston North End for the rest of the campaign. He has picked up his first senior caps for the Republic of Ireland this season.
Viktor Gyokeres made 12 appearances for Swansea City in the first half of the campaign, scoring once, before going Coventry City for the rest of the season. He was reunited with Leo Ostigard – the pair having spent last season out on loan together with German second-tier outfit St Pauli. The Sweden international has scored once in three appearances for the Sky Blues.
There was confirmation that Billy Arce would spend the rest of the campaign in Ecuador with LDU Quito.
Long serving Kirsty Barton departed on loan in search of first team football, linking up with Championship side Crystal Palace.
Midfielder Max Sanders – an academy graduate who joined the club at the age of eight – joined League One Lincoln City on a two-and-a-half-year deal.
Glenn Murray, who had spent the first half of the campaign with Watford, was recalled so he could secure a permanent move to Nottingham Forest.
In spells totalling 285 games he scored 111 goals, making him second only to Tommy Cook (125) in the club’s all-time goalscorers list.
Having spent the first half of the campaign on loan with MK Dons, defender Warren O'Hora made the switch permanent.
Tariq Lamptey signed a new deal until the end of the 2024/25 campaign after his eye-catching start to life in an Albion shirt.
Goalkeeper Jason Steele also committed his future to the club, signing a new two-and-a-half-year deal.