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The new SystemContext system data dictionary
gives letters in Correspondence Management access to information
in the current system context. The system context comprises information
about the currently-logged in user and active configuration parameters.
In particular, the current implementation of the SystemContext DD
contains the following DDEs: agentID
agentName
agentFolder
agentSignatureImage
The new agentSignatureImage DDE is a computed
DDE representing the user’s signature image. The expression for
this computed DDE uses a new custom function exposed by the Expression
Manager building block. This custom function takes agentID and agentFolder as
input parameters and fetches the image content based on these parameters.
The value of agentFolder is taken from the CMUserRoot configuration parameter
for the Asset Composer configuration service. You can change the value
of the CMUserRoot configuration parameter using
the Felix configuration UI. By default this configuration parameter
points to /content/cmUserRoot in the CRX repository.
You can override the default custom function to define your own
logic for fetching the user signature image.
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