An "intervention" as understood for the YEI indicators cannot automatically be linked with the four month period set by the Youth Guarantee (YG) Recommendation for providing a young person with an offer. The indicator refers to the support a person receives through YEI, e.g. a training course. The support can cover activation measures (the so called YG Service), measures which could qualify as a Youth Guarantee offer and/or other types of measures. The ESF Regulation (Regulation (EU) No 1304/2013) does not stipulate a minimum or maximum duration of an intervention or at which point after leaving formal education or becoming unemployed the person should receive or is even entitled to the support (in the sense of YEI support).