In 2006, to address the global inequitable access to influenza vaccines in the event of an influenza pandemic, WHO, with support of donors and partners, embarked on an ambitious project, the Technology Transfer Initiative (TTI), to facilitate influenza vaccine production capacity-building in low- and middle-income countries (LMICs). This commentary briefly summarizes the high-level lessons learned, key challenges encountered, and critical components needed for success.https://doi.org/10.1016/j.vaccine.2022.06.057 - 2022