You can use this function to create a service contract with reference to an existing service contract. You
A service contract can also use this function to create a service contract with be also created with reference to an existing quotation - when a customer wants a quotation first before signing a new contract - and a .
A new quotation with reference to an existing contract can be created - when a customer has an active contract but it is about to finish and he wants to get a quotation for extending this contract.
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