Strategy 9.2.1m supports writebacks to Salesforce.com in three ways:
1) Use Strategy ODBC Driver for Salesforce. Refer to the following technical notes for more details:
KB38305: How to configure MicroStrategy 9.x and 10.x on Windows to Connect to Salesforce.com using MicroStrategy ODBC Driver for Salesforce
KB439548: How to configure MicroStrategy 9.x and 10.x on Linux to connect to Salesforce.com using MicroStrategy ODBC Driver for Salesforce
2) Use XQuery reports. Refer to the following technical note for more details:
KB38308: How to connect to Salesforce using XQuery reports in MicroStrategy 9.2.x and above
3) User Transaction Reports. Refer to the following technical note for more details:
KB39222: How to configure MicroStrategy 9.x/10.x to write data back to Salesforce.com using Transaction Report
KB39223