OK helps to know this detail.
I have very little knowledge of that product, but, believe Celigo allows you to edit values on the fly using script.
Those scripts are part of the config / setup for the flows as I recall.
(my little knowledge is of
Integrator.io but I'd guess the full product is much the same)
There is a Celigo bod that lurks on Slack but unfortunately I forget that person's name.
You may be better contacting Celigo support to ask how to do that if you don't know.
Also the
#CFG7DNCM9 channel may be a more appropriate place to post this and catch the right people's eye 😉