Implementing Multi select lookup

I have created one section with the name of Courses and added one lookup for selecting the contact. For this lookup, I need to implement a multi-select lookup. Can anyone please guide me?



Hello Nagamani,

This question was already discussed in community post: so you can simply use the solution from there.

Also there is a base realisation of multi-select in "Customer" field of an "Opportunity" page so you can simply review the logic that is used for that field and simply apply it to your custom lookup.

Best regards,


Thank you Oscar Dylan. 
But, Where I can find that lookup.config?

Nagamani Dangeti,

You need to develop one using Academy article here and LookupMultiAddMixin mixin.

Best regards,


Actually, What I am asking is Can we implement a multi-select lookup for a field in the section?

I have one section. In that, I have created one lookup field. For that lookup field, I need to implement multi-select lookup.


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