I want to show dynamics crm optionset in Powerapps.
It seems that currently no support for Lookups and Optionsets in Powerapps when connected to Dynamics 365. Found some workarounds here:
There is actually - the guid that comes out of the optionlist_value is coming in GUID format rather than STRING. Because powerapps don't have (yet) support for dynamics crm GUIDs data format, you have to improvise.
Filter('Accounts', Text(_new_brand_value) = BrowseGallery1.Selected.new_brandid)
In powerapps case, the Text() works the same as toString()
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