Function to ask MSS to cancel a service.
Function to change the state of the service to closed, it runs all the automatic processes like invoicing the service.
Function to add a new article to the service.
Function to load into the temporary tables a service to be edited (SRV_Temp, SEQ_Temp, SIT_Temp, SMT_Temp, SLN_Temp)
Function to save the service
Function to add the equipment to the opened service.
Function to validate if MSS is configured to create any document with service articles
Function to create the invoice, or another document type, with the articles added to the service