This role is nothing but of glorified MR. Sales and Marketing has more value and respect. Some SPM reports to non medicos from sales background. no value for talent anybody can be promoted to senior level. This role is like spare part to sales representative s. In HO nobody knows u as ur always on field like MR. You are evaluated just like sales . Knowledge upgradation or skills enhancement is only for Medical advisor who are based in HO. MA has no ground reality and takes part in strategies. Some Indian pharma is better option compared to this, so do not waste your time here.
As mentioned in comments