Do not assume that knowledge duration waives the separate employment requirement.
Apply both timelines to the actual facts
Review the qualifying year and relevant three-year period separately from when the employee first encountered the company’s products. A strong knowledge explanation cannot simply replace a missing employment element.
Calculate the foreign-employment period from verified hire, termination, travel, and payroll dates, not from the first product demonstration. The applicant generally needs one continuous year employed abroad by a qualifying related organization during the preceding three-year period. Customer work can explain when familiarity began, yet it does not shorten that year or create an exception. Confirm when the full period will accrue before selecting a petition date, and preserve evidence for days spent in the United States. At the same time, build the specialized-knowledge record from internal assignments, training, problem-solving responsibility, and the particular company processes involved. Even decades in the industry cannot replace company-specific proof.
Hypothetical example: A forestry-inventory platform analyst from Rivière-Éternité used the software for several seasons at an unrelated enterprise, then joined the developer’s Canadian subsidiary eight months ago. The planned US assignment is deferred until the verified qualifying year is complete. Customer-era tickets remain in the knowledge chronology, but payroll and personnel records begin only at hiring. The employer uses the extra months to document advanced configuration methods and corporate ownership. It does not add customer service time to employee tenure or promise that long familiarity creates an automatic waiver.