Get orders that does not include tag

Questions
1

How do I get all orders that do not include a specific tag using data service?

Litium version: 8.5

2

You can try to use the MustNot to reverse the condition, see Data service (litium.com)

3

This is the code I tried. But I got help from @utku and I believed he has reported a bug for it not working. And he told me to query the “Order” object meanwhile.

private static void OrdersNotTaggedWith(FilterDescriptor<SalesOrder> filterDescriptor, string tag)
{
    filterDescriptor.Bool(b => b.MustNot(mustNot => mustNot.Tag(tag)));
}

Edit: Correction, he said to create the tags with the Order object instread of SalesOrder object so:

Change this:
_taggingService.Add<SalesOrder>(order.SystemId, "MyTag");

To this:
_taggingService.Add<Order>(order.SystemId, "MyTag");

4

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