The number of steps in the sync may increase from what was in previous sync jobs. The total number of steps for each sync run can be found in the sync history tab in CRM.
This occurs when new Classification mappings to attributes are added. The step count should increase by 7 for every Classification Attribute mapping done. It adds the following steps:
T2B Upsert for Classifications to Attribute table T2B Delete for Classifications Attribute table B2T Upsert for Attribute table to Classifications B2T Delete for Attribute table to Classifications T2B Insert for Classification values to code table T2B Update for Classification values to code table T2B Delete for Classification values to code table