RDF - Number of Promotion Variable Inputs in PromoSelfEffExpr special expression
Is there a limit on promotion variable inputs for PromoSelfEffExpr special expression? I only get valid results for the first 10 (PROMOCAL0 - PROMOCAL9) and 0 for the rest. If I choose for example 15 promos, promos 10 to 14 give a zero uplift but If I place them to 5 to 9 input positions, I get a none-zero uplift. Promo effect is the same in both cases, as all other PromoSelfEffExpr input parameters.