Capability to add lines to an existing type 86 entry created via API

Currently we have to use 2 systems, and have a extra driver and truck on the road because we cannot add a entry 86 from another client to a already existing entry 86 that was created via API. We have several customers that send us entry 86 via CSV files that we upload to another system to create a manifest, we would like to be able to consolidaite our routes and combine with customers in acelynk on one manifest.

Please let me know if you need anything to help process this request.

Thank you

Rachel