If the name of a section in the Content Plan Template is changed, does it affect existing records?
No. It does not automatically change on all Content Plan records are created from that template. Updates to the template only impact future content plans created from that template and do not impact existing Content Plan records that are already created.
The user needs to update the Content Plan records where the name should be changed manually. This is done by double-clicking the name cell of the content plan record in the content plan viewer in order to inline edit and changing the name.