Which tense would be appropriate in this case - past perfect simple or past simple?

"After he had spent some of the money, he decided to find his dream house."

or

"After he spent some of the money, he decided to find his dream house."


Solution 1:

If the order of the two actions in the past is important, you should use the past perfect tense to show that "spending some of the money" was completed before "deciding to look for the dream house".