'Update Multiple google Sheets using script from a master sheet

Can anyone assist with updating multiple google sheets using java script. I have 100+ google sheets with my suppliers, and I need a way to make updates to them all via a script.

For example. I want to be able to make changes to a central script which I have, that will add new data to to the Sheet Tab "Samples" in cell A1 for every sheet url with my suppliers.

I have a list of the unique URLs to add, I just need some help in creating a script.

There are obviously many other changes, but just getting a start will hopefully help me progress some.

Any help is gratefully received.



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