I would like that the Module Create a Doc to be executed only one time.
Is there a way to do that ? Maybe through filters ?
Yes, and you can also set one of the filters as a fallback route.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!
TY.
Can you tell me how, or do you know if there’s a doc that explains it? 
Hi @am ,
Welcome to Make Community!
From your screenshot, we can see that you are using the ‘Create’ and ‘insert data’ Google doc modules. In this case, you can simply apply a filter to the links between the modules to narrow them down.
Please check the image below.
Please check the below documentation from Make about the filters.
https://www.make.com/en/help/functions/variables#add-a-filter
Regards,
Msquare Automation - Gold Partner of Make
None of the above answer seems to work… 
1/ Because i can’t access the google doc_id created in branch 1 from branch 2
2/ And i can’t figure how to set filters based on "dont go there if you have been before…)
Hi @am
To access Doc ID in Branch 2, you need to use the Get and Set variable.
For more details, refer here
Best regards,
Msquare Automation
Gold Partner of Make
@Msquare_Automation – Explore our automation insights in our profile.