Hi @Deb_B_Dev,
You can use the ViewQuery property in a REST API call for this. You can update the property in a Send an HTTP request to SharePoint action.
Below is an example of that approach.
Let's say you have the list below with the All Items view and you want to sort your list items on DueDate Older to newer (ascending). In addition to that you also want to exclude items where the PercentComplete value is equal to 100.
1. This is how the all Items View looks before update

2. This is what we are aiming for after the update with the Power Automate cloud flow

3. The ViewQuery you would need to achieve this would be like below:
<OrderBy><FieldRef Name=\"DueDate\" /></OrderBy><Where><Neq><FieldRef Name=\"PercentComplete\" /><Value Type=\"Number\">100</Value></Neq></Where>
4. In a flow setup it would look like the below
Be sure to use your specific ViewId, not the one of my example.
URI
_api/web/lists/getByTitle('@{variables('ListName')}')/Views('@{variables('ViewId')}')
Headers
{
"Accept": "application/json;odata=verbose",
"Content-Type": "application/json;odata=verbose",
"X-HTTP-Method": "MERGE"
}
Body
{ "__metadata":
{ "type": "SP.View" },
"ViewQuery": "<OrderBy><FieldRef Name=\"DueDate\" /></OrderBy><Where><Neq><FieldRef Name=\"PercentComplete\" /><Value Type=\"Number\">100</Value></Neq></Where>"
}
