*
Lookup Fields can be used in order to pass parameters from an entity which is linked to the entity you are currently using. For example, you can create an Online Service for a Ticket, and pass the address of the account which is linked to the ticket.
This way you can define an Online Service for the Account, which will be activated from the Ticket window.
Lookup Field syntax:
<CMTLBLDATA_FLDTKTCARDID_FLDCRDADDRESS1>
Where: CMTLBLDATA_FLDTKTCARDID is the pointer to the linked account FLDCRDADDRESS1 is the account's Address field