Addendum to:
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/ca-unified-infrastructure-management-probes/GA/alphabetical-probe-articles/apm-bridge-ca-apm-bridge/apm-bridge-configuration.html#concept.dita_dcb08ecd8432455cf427546342fde96cc830e26b_Configuration
In particular the section: "apm_bridge probe does not send all devices to DXI"
Release : 20.2
Component : CA DOI Foundations
The origins need to be listed in a comma-separated list in the resources section:
<resources>
<0>
host = apmgw.dxi-na1.saas.broadcom.com
origin = origin1,origin2,origin3
edgeTtlInSec = 2592000
token = use_ssl = true
port = 443
vertexTtlInSec = 2592000
<metric_feed>
use_ssl = true
path = /apm/appmap/private/metricFeed/write
host = apmgw.dxi-na1.saas.broadcom.com
</metric_feed>
</0>
A wildcard (*) is not supported