Field help (SIH0INVDAT) 

This is the customer date. For invoices linked to service contracts, this date is initialized when selecting the service contract. It can be today's date or the next invoice date based on the value of the DATREFCON - Service contract invoice date parameter (HDK chapter, INV group). For invoices/credit memos linked to other documents, this field is initialized to the current date and it can be modified. If it is modified, after at least one line has been entered or saved, a question is asked suggesting that the prices and discounts on all the lines of the document be recalculated. This message is suggested only if it is an invoice or direct credit memo. If the invoice or the credit memo refers to original documents, the latter is not suggested.

SEEINFOComments on the DGI conformity: