Since Dynamics 365 v9 it's possible to filter the N:N 'Add Existing Lookup' by using supported javascript code.
( https://github.com/PaulNieuwelaar/filteraddexisting )
In my case I'm filtering a N:N relationship, I need to customize the command for the N:N button (called AddExistingAssoc) on the SubGrid ribbon for the related entity.
But the subgrid is missing the buttons, no way to remove records from the grid?
Any ideas about how fixing this?
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