Formula field non editable - WHY -

Excuse me but I’m trying to create a formula field but it always turns out not editable, why? I’m looking all over for the solution but can’t find anything.

Please do not post the same question multiple times. I already answered your previous thread below, and if you keep creating multiple threads, people won’t be able to effectively help you:

This topic was solved and automatically closed 15 days after the last reply. New replies are no longer allowed.