A recent crackdown by SAP AG on companies that it considers are indirectly accessing its software without paying for it could spell trouble for some longstanding customers of the software vendor, an analyst firm said this week. Under SAP's licensing terms, an indirect access scenario occurs when a company's employees or business partners, who are not licensed SAP users, accesses SAP software via a third-party application interface, said Dave Blake CEO of UpperEdge in Boston.