header function
you can use header function without the routing-base function, example to load and update the header
if you load a routing or create a new routing, the header is loaded/created automatically
routing=header=load=<routing-id>  | 
Load header. If not existing: create the header  | 
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routing==header=update  | 
Update/Save the routing  | 
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routing==header=initall  | 
create header for all boms for which no header exists  | 
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routing==header=property=value  | 
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