Miele WER 865 WPS Excellence Operating Instructions Manual page 23

 Remove the foil from the detergent
cartridge.
 Open the access panel for TwinDos.
Before using for the first time
 Push the UltraPhase 1 detergent
cartridge into compartment 1 until it
locks into position.
The following message appears in the
display:

Now enter the settings for UltraPhase 2
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