NOTE: The PAi 1.7 release is for SAP Assurance & Compliance Software, that is SAP Business Integrity Screening & SAP Tax Compliance 1.3 and above. Do not install this component unless you are using ACS 1.3 and above. Only the 1.7 PAi DU should be used in combination with S4 HANA 1709 FPS02 and ACS (SAP Assurance and Compliance) 1.3. Do not, under any circumstances, install the 1.6 PAi DU as this could lead to data loss.
SAP Security Blog