After attaching two entities to the main entity, and detaching them later in the model, using two detach routes, the following error is displayed.

Reason:

Only one detach routing can exist at any given location.

Solution:

You can use one of two methods to detach multiple entities from a main entity.

1. Detach all entities at the same time – use a single detach route with no condition. Then at the activity immediately following the detach route, use conditional routes to separate each entity.
2. Detach each entity at separate activities – use a single detach route with a condition (e.g. Name = Entity1) to detach the first entity. Then in the next activity (containing the main entity and the remaining attached entities), use another detach route. A condition is not required at the second detach if there is only one remaining entity attached.

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