The default date is not copied into existing schedule lines V1013

Hi,

I person 2 income orders, they person antithetic shipping points and routes.

After changing Schedule day earlier, I tin alteration Requested transportation day connected header level successful 1 SO, portion cannot bash that successful different SO, the strategy says, "The default day is not copied into existing docket lines V1013", what is the reason? and however to lick this issue?

#ECC