Abstract: External customer data (ECD) may be efficiently stored in a network. When ECD is received at an edge node, the node may determine if the ECD is subject to a compiling procedure. For example, if the ECD comprises a list of entries that all have the same data type, the ECD may be placed into an array, and the array may be sorted and stored. In other examples, if the ECD received at a node includes references to other ECD, the referenced ECD may be retrieved, and the received ECD and referenced ECD may be combined and stored. In other examples, the ECD received at the node may be script instructions that can then be compiled into, and stored as, a runtime version. Any compiled ECD stored at nodes may be subject to the same invalidation and expiration policies as the uncompiled ECD from which it was derived.