I want to add a where clause in customer grid collection. e.g.
I tried to google it but got no success. I have also tried to implement customization methods used for product and order grid but it seems that di.xml and ui component xml files are different.
e.g when I try to add code
<argument name="addFieldStrategies" xsi:type="array"> <item name="title" xsi:type="object">Namespace\Module\Ui\DataProvider\Test\AddTitleFieldToCollection</item> </argument>
in file /app/code/Namespace/Module/view/adminhtml/ui_component/customer_listing.xml
Element 'arguments': This element is not expected. Expected is ( argument ).
I have also tried modifying collection through observer but it seems event
customer_grid_collection_load_before does not exist.
I don't want to modify core code and I have no clue from where to start. Please comment if any other information needed.