Inforecord update indicator and editable fields in contract

Hi guys,

my question is this: when I create a contract and the inforecord update indicator (EKPO-SPINF) is updated with a value different from blank (A, B C etc..) the field material group becomes not editable...It is independent that there is a Call off linked to that contr item, an IR or GR or other..it is sufficient that SPINF is not blank..Which is the business reason for this?

I have searched into the forum and looked at the Notes 675523, 569885, 430543, 202173 13127, 653228 etc... without results..

Thanks in advance

Bye to all

Massimiliano