TripAdvisor has removed GetYourGuide as a provider of product from its tours and activity channels.
It is unclear when the agreement ended with GetYourGuide, the European-based supplier of inventory which fed the Things To Do lines on TripAdvisor, but confirmation comes two months after rival Viator was snapped up by TripAdvisor for $200 million.
The user review giant (and now emerging hotel metasearch player) TripAdvisor had previously worked with both GetYourGuide and Viator, as well as former parent company Expedia, to place "book now" buttons on a wide range of tours and activties on its website.
The functionality, which directed to users to reserve or book the featured product, appeared on both its desktop and mobile services.
Viator was added as a supplier to TripAdvisor in January 2013, almost two years after GetYourGuide became the first partner and, a short time later, Expedia.
Whilst the end of the GetYourGuide contract will not come as a huge surprise given that it now has its hands on the Viator online travel agency, mystery still surrounds the fate of its agreement with Expedia.
A TripAdvisor official says tours and attractions are a "high priority as evidenced by our recent acquisition of Viator".
"We are continuing to build on our integrated tours and attractions offering with Viator taking the lead in that very active area of our expansion."
However, the official refused to comment as to whether it would continue to work its former owner, either in the short or long term.
GetYourGuide CEO Johannes Reck says the TripAdvisor relationship was "a very fruitful cooperation for both parties" but a "small part of its business". The end of the relationship will "hardly affect" its bottom line.
"We have prepared for this scenario for several years and were not surprised by the discontinuation of the partnership after the Viator acquisition.
"We continue to have a very positive relationship with TripAdvisor and are very thankful for their great contribution to GetYourGuide in the early days and along our growth trajectory."
TripAdvisor CEO Steve Kaufer told Tnooz in early-2013 that the tours and activities sector would be one of the major areas it would be keen to focus on next, alongside its move into hotel metasearch.