3737558 - SQL Error: class "CL_MDC_SQL_BRIDGE", method "APPEND_ACTIVE_RECORDS", table "Purchasing Org Data"

When attempting to perform a mass change in MDC (Mass Data Change) for Business Partner, for smaller datasets (<100 BP records), the process runs without errors. When the Suppliers with more than 100 records selected, the Edit step fails and the process stops with multiple errors as below:

SQL Error: class "CL_MDC_SQL_BRIDGE", method "APPEND_ACTIVE_RECORDS", table "Purchasing Org Data"
Message No. MDC_MODEL079

Invalid key entry in line XXX, sheet "LFM1 - Purchasing Org Data" in table "LFM1"
Message No. MDC_LOAD139

SAP Master Data Governance-Consolidation and Mass Processing 

CL_MDC_SQL_BRIDGE, APPEND_ACTIVE_RECORDS, Purchasing Org Data, MDC_MODEL079, MDC_LOAD139, MDC_LOAD 139, MDC_MODEL 079, IF_MDC_SQL_BRIDGE~HANDOVER_FROM_PREVIOUS_STEP , KBA , CA-MDG-CMP-AF , Application Framework , CA-MDG-CMP-BP , Business Partner , Problem