What is preserve and exclude while cloning

[Maajidqureshi5]

Is it necessary to preserve or exclude tables while cloning . I am new to cloning if someone can explain why they are important and what we need to do ?

[Dr Atul G- LNG]

Hi @Maajidqureshi5 

In ServiceNow, Data Preservers protect specific existing records on a target instance from being overwritten during a clone, while Clone Exclusions prevent data from a source instance table from being copied over, typically leaving the target table empty

https://youtu.be/tDSRe7sX610

My video provide full details.

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0717012

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3140039

the above one is good read.