To strengthen primary care and generate evidence relevant to real-world practice, GP involvement in research is essential.  Engaging general practitioners (GPs) to particpate in research studies and clinical trials is a well-recognised challenge. Competing clinical demands, administrative burdens and limited research infrastructure can reduce their capacity to identify and recruit eligible patients. Countries across Europe have implemented pragmatic, low-cost strategies that strengthen recruitment of frontline GPs. This interactive workshop presents concrete, evidence-based examples from four European countries to illustrate what has worked, what has not, and how different systems support (or fail to support) the participation of busy GPs. Using these examples to encourage reflection on similarities and differences in their own settings, we will discuss how a simple intervention may be further evaluated using a Study Within A Trial (SWAT) approach.By the end of the workshop, participants will be able to:   1.     Describe evidence-based strategies that have improved GP recruitment in European primary-care studies.    2.     Interpret how and why these strategies were effective.   3.     Evaluate which types of support (e.g., research staff, communication methods, digital tools) could be most appropriate for their own practice.   4.     Draft a short, feasible recruitment plan for a future study in their own setting, including one component suitable for SWAT evaluation.•          Case-based introduction, with practical insights from EGPRN and four different national research networks: XXXX, XXXX, XXXX MUST national research network, the XXXX PACT (Primary care Academic CollaboraTive), including personalised outreach, peer-to-peer communication, WhatsApp micro-communities and rapid mobilisation of clinical insight. (20 minutes) •          Interactive polling to gather participants’ experiences, perceived barriers and solutions (10 minutes) •          Small-group “Recruitment Design Lab”, mixed-country groups co-create a concise, feasible recruitment plan and identify one testable SWAT element. (20 minutes) •          “Recruitment DIY Toolkit” Wrap up with shared strategies (10 minutes)Participants will leave with actionable, evidence-informed strategies to improve GP recruitment, an understanding of how SWATs can rigorously evaluate such approaches, and a set of practical tools adaptable to diverse European primary-care systems.Understanding how research practices vary across Europe will empower participants to apply and adapt recruitment strategies to their own settings.