This operation is included in the importIntegration operation. You don't need to put updateConnections or activateIntegration in your workflow after the importIntegration operation.
This page is the best source of information about the way that connection information can be updated at deploy time.
There is a blog article about replacements as well - https://flexagon.com/2019/01/flexdeploy-loves-oic-manage-connection-property-replacement/
Updates connection properties in an OIC Instance. Connection metadata should be in json format. If properties have attachments, those attachments will be uploaded as well. This operation is intended to work in tandem with exportConnections but it is not required. This operation can be utilized as long as their there is a connections.json file in the temp directory FD_ARTIFACTS_DIR. If there are attachments that need to be uploaded as well they should be at the same level as the connections.json and follow the same directory format as seen in the attachments section here.
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Prior to updating connections, a the connection plan file can be is applied if present to to update environment specific properties.
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