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.

[its_SumitNow]

Hi @Maajidqureshi5 

Yes, normally cloning is done during an upgrade or in case of failure in the sub-production environment. When no preserves or exclusions are specified, then everything is cloned as it is. But there are some instance-specific configurations in our instance, such as Discovery Credentials, OAuth Credentials, etc., that must be cloned with care. Also, the user permissions in the sub-production and production environment are not same; they should retain post-clone. This is the reason we use preserves/exclusions while cloning.

For more info you can refer this articles:-

https://www.servicenow.com/community/servicenow-ai-platform-articles/administration-cloning-knowledg... 

https://www.servicenow.com/community/upgrades-and-patching-forum/best-practices-and-steps-to-clone-a... 

if you need more info, let me know, meanwhile please accept my solution  & Mark Helpful

Thank you 🙂

Regards

Sumit Y

Technical Consultant