SFDC External ID Limitation

Salesforce.com has put some silly restrictions and one of those is limit on No. of Unique fields per object. It allows only 3 External ID fields per object and considers Unique fields as type of external Id’s only.So, you can create maximum 3 Unique fields per object but can get this limit extended by requesting the salesforce via raising a Case.

ADM 201 Question:- Only 3 External IDĀ Fields can be created on an Object.
ADM 201 Question:- Only Text, Email, Number fields can be made External Id fields.

Note:- You can not make a field unique if itĀ contains data which is not unique.

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I am Sakthivel Madesh, a certified Salesforce Advanced Developer & Administrator working on Salesforce Technology since 2011. I am currently working in Techforce Services as Sr. Salesforce Developer. I have worked on multiple technologies Like PHP, Java, Salesforce, I am very passionate about Salesforce and to earn 15x Salesforce Certification. I love Trailhead for learning Salesforce Skill and Become a Trailhead 5x Ranger too. I Love to Learn & Share my Salesforce knowledge to Salesforce Learners/Beginner using My Blog and Salesforce Community.

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