prevent duplicate records help ?

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How can I prevent duplicate records in the tables in these five fields? I would be glad if you could help....

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Hello, I made "update Duplicate Check": true to prevent duplicate records in these json files, but it only worked in the account...

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In the area you showed me

I will make the definitions here in Turkish, and delete a few. lazovic...

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lazovic hello, I I want to change this filtering field only
includes...

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Hello, is there anyone who can help me? !!!

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Hello, I want this search field to remain only includes, how do I do that?...

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Is there a table in the sql side where id=id for opportunities, events, documents in the companies field?

For example, SELECT * FROM espocrm.account_contact;...

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Thank you for your help. Is there a table in the sql side where id=id for opportunities, events, documents in the companies field?

...

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I don't see these on my side....

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Hello, I made my own local espocrm edit, but there are no contacts, opportunities, cases, document fields as in the second image below. How can I...