Solution : https://service.sap.com/sap/support/notes/559856 (SAP Service marketplace login required)
Summary :
During mass maintenance in SAP, initialization of field values occurs erroneously during background processing if no new value is assigned to selected fields. This issue impacts transactions MASS, MM17, XD99, and XK99, where unassigned fields unintentionally receive initialized values across selected records. To resolve this, fields not meant for change should either not be selected or should have a defined formula to retain old values. Additionally, the mass maintenance session should differentiate between selection and change fields to prevent unintended data alterations.
Key words :
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Related Notes :
557702 | FAQ for mass maintenance |