SLLC Intermediate

It is a multiple-choice examination covering nine weighted supply chain domains, from strategy and network design through to risk and compliance. The awarding body publishes the current number of questions and the sitting time on its website; check there before you book, as these details are updated periodically and are not fixed here.

It assumes working familiarity with planning, sourcing, or logistics, so it rarely rewards pure memorisation. The hard part is scenario questions where two answers look reasonable and you must weigh cost, service, and risk. Candidates with two or more years of hands-on operational exposure generally find the vocabulary and trade-offs intuitive.

Retake rules, waiting periods, and any fees are set by the awarding body and can change, so confirm them on its official site rather than relying on forums. In practice, most candidates who fail are weak in one or two domains; use the score report to target those before rebooking instead of repeating a full generic review.

Start with the three heaviest-weighted domains: strategy and network design, production planning and inventory control, and procurement and supplier management. Then cover demand planning, transportation, warehousing, and customer service. Leave technology and analytics plus risk and compliance for last, since they are lighter but often supply easy marks.

There is no official study-hour requirement. Candidates already working in supply chain typically need a few weeks of focused review, while career changers should allow longer. Judge readiness by practice scores and your ability to explain trade-offs, not by hours logged, and reserve the final week for scenario practice rather than new material.

Three recur: memorising formulas without knowing when to apply them, ignoring the lighter domains and losing easy marks, and answering from habit rather than reading the scenario's constraints. Watch for qualifiers such as lowest cost, shortest lead time, or highest service level, because they change which option is correct.

Expect forecast error measures such as mean absolute deviation and bias, safety stock and reorder point logic, economic order quantity, inventory turnover and days of supply, and basic capacity or utilisation checks. Know what each result means for a decision, not just the arithmetic, since questions often ask for the implication.

This page is independent study material and is not affiliated with, endorsed by, or sponsored by any awarding body. Always treat the official exam handbook and the awarding body's website as the authoritative source for eligibility, content weighting, scheduling, and results.

Do timed mixed-domain sets rather than single-topic drills, then review every wrong answer to identify whether the gap was knowledge or misreading. Rehearse your formula sheet from memory, and confirm your appointment logistics with the awarding body. Avoid learning new topics in the last two days.