Add id to a many-to-many Link Multiple field

[Vincent]

Thank you

[tanya]

https://www.espocrm.com/documentatio...linkmultipleid
if you use relation as Link Multiple field

[Vincent]

I have 2 Entities, A & B, and there 2 entities have a many to many relationship.
I want to add some B rec to A in A's before save script. I have tried the following code

array\push(bsIds, 'XXXXXXX');

where bs is the Link Multiple field of B in A

but it does not work. How can i add id to a many-to-many Link Multiple field?

Thank you