What do I do when I can't write into the calendar?
There are some possible reasons as follows;
a. Your ApplePencil is not connected.
→Connect the ApplePencil to your iPad.
b. The input mode is not set to the handwriting mode.
→Tap the Pen icon next to “x” on the toolbar, which is located on the bottom of the screen.
c. You are writing with other stylus pens, or with your finger.
→Unfortunately you can only use the ApplePencil for handwriting.
d. You are writing with white color mode on a white sheet.
→Change the color.