Upvote:1
Permitted business-related activities are covered under the UKβs Standard Visitor visa type https://www.gov.uk/standard-visitor-visa
Bring the same documents youβd need to apply for a visa, to show to officers at the UK border, if asked. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/549692/Visitor_Supporting_Documents_Guide_-_English_version.pdf