3262752 - Update factory calendar

You are trying to change a factory calendar assigned to a Plant via the SSCUI 'Define Plant' (105877) 
The factory Calendar field is greyed out and cannot be changed.  

SAP S/4Hana Cloud - All versions 

1) Open your configuration tool 'CBC' or 'manage your solution'
2) Locate SSCUI 105877 'Define Plant' 
3) Try to change the factory Calendar

It is not allowed to change a productive factory calendar as this could lead to database inconsistencies. 

The details of the factory calendar assigned to the plant can be adjusted if required. 
Changes to the calendar definition can be carried out via 'Maintain Calendar' SSCUI 180007
Please refer to the attached blog for more details: 

T001W, SCAL, MVER, SIMG_CFMENUSAPCOX10, V_T001W

KBA , BC-SRV-ASF-CAL , Factory Cal., Holiday Cal., PC Calendar , LO-MD-PL , Plant Master , Problem