Signature creation- cant find manufacturer

Document ID : KB000094231
Last Modified Date : 03/05/2018
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When trying to create a signature I am unable to find the manaufacturer even though the manufacturer has been created. 
If I look at manufacturers we see the manufacturer but when creating the signature the manufacturer is not available to be selected. 
The manufacturer will not be listed when creating a signature if it does not have a product assigned to it. Assign a product to the manufacturer.