Solution : https://service.sap.com/sap/support/notes/640422 (SAP Service marketplace login required)
Key words :
symptom mass change transaction takes, terms ca-gtf-ms, customer master records reason, customer master records, long run time, mass change, mass maintennance, large number, inefficient logic, attached corrections
Related Notes :
| 566520 | Long runtime mass maintenance MM17, XD99, XK99, MEMASSIN |