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ID/Internal ID/External ID

edited Jun 2, 2025 2:42PM in Ask A Guru 2 comments

(First, I could look this up or try, but I don't know enough to make a reliable test. The last time I tried, I ended up with duplicates, so I have to ask here since you may know a scenario I don't know.)

When I want to update a Customer record (using Import CSV, Relationships, Customers Only), I think I can use the ID. For example, if I uploaded a list of IDs and Category, would that work ok? (like below)

I also see Internal ID and External ID. Is it safest to use Internal ID or is just ID ok? And what is the purpose of External ID if I already have ID and Internal ID?

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