I have a strange scenario here. SNP replans all receipts for some of the locations only, without any changes to planning file entry parameters. Though the quantity and dates are same. the order numbers are changed in each run. There is not any planning file entry for SNP. For testing, interactively location heuristic is run for a example location product. For each run, the order number is found different. This behaviour is not observed for all the locations. The version setting is for net change planning and SNP global setting is delta mode. SNP is not expected to change the order numbers if changes to planning file entries are not done and version setting is for net change planning...Any clue as to why is this behaviour?