I have custom entities Contract Line and Price List Item. On Contract Line there is a lookup field Price List Item.
Depending on different conditions adequate Price List Item is determined.
I managed to query Price List Items entity to get the GUID of one record using Kaskela's Workflow Elements:Query - Get Results using custom FetchXML.
Returned GUID value is in form of a string.
What is now needed is to populate lookup field Price List Item with value based on retrieved GUID.
This logic needs to run on server side because new records will be created by import, not manually.
Is it possible to do this without creating custom plugin?