How can i add custom field and show it in the print

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1

hello everyone
i want to create two new fields : Clinet_cc_id and company_cc_id
this CC_id is unique in all country and it’s should show up in all document : Quotation, invoice …
this field is 10 numbers not more and not less than 10
so how can i create those two fields
and how can i show them in the print
thank you

2

You go to edit all the doctype you want these 2 new fields in.
Then make sure you create a custom app for that. Otherwise, you’ll loose it all at every update.

3

I don’t believe that is accurate

4

That’s right not totally accurate.
You will need to stash your changes first with git before you update.

5

My understanding is that Custom fields exist in the database only, not the code. So there is nothing to be overwritten by any update