What should one who made an intention, at night, to make up for a missed fasting day, but broke his fast on the next day?

What should one who made an intention, at night, to make up for a missed fasting day, but broke his fast on the next day?

Answer:

One who started making up a missed fasting day, then broke his/her fast without a legitimate reason is considered sinful, and is only obliged to make up for the missed fasting days.

This answer was collected from the official government Iftaa Department of Jordan.

Link