Label Designer Expression for the count by OBlpn

Summary:

We need to count by grouping by OBLPN, as in the expression below, This expression is used in WebReports, and we need to use it in the label.

=If(Left({container.container_nbr}, 1)='7',1,0)

=AggSum

Version (include the version you are using, if applicable):

wms24C.11m

Code Snippet (add any code snippets that support your topic, if applicable):

=If(Left({container.container_nbr}, 1)='7',1,0)

=AggSum

Is there away reproduce thi code in label designer.