update-sf-w-ampscript

```ampscript
%%[
  VAR @rows, @row, @rowCount, @email, @firstName, @lastName, @company, @industry
  SET @rows = RetrieveSalesforceObjects('Contact', 'Id, Email, FirstName, LastName, Company__c, Industry__c', 'Email', '=', '=')
  SET @rowCount = rowcount(@rows)

  FOR @row = 1 TO @rowCount DO
    SET @email = field(@rows, 'Email', @row)
    SET @firstName = field(@rows, 'FirstName', @row)
    SET @lastName = field(@rows, 'LastName', @row)
    SET @company = field(@rows, 'Company__c', @row)
    SET @industry = field(@rows, 'Industry__c', @row)

    UPSERTDATA('Contact', 1, 'Email', @email, 'FirstName', @firstName, 'LastName', @lastName, 'Company__c', @company, 'Industry__c', @industry)
  NEXT @row
]%%
```