DATUB field for BOM components Valid to date

[ssaher412]

Hello Experts,

I wanted to know the tables for DATUB field for the valid to date of BOM components but I checked the several SAP community post and found that there is no table which can provide the DATUB field. We are using the ECN to update the BOM. So when we update the BOM we overwrite it on existing BOM means if we have created BOM ALT 1 with 3 components with valid to date 31.12.9999 and after some time we wanted to update the BOM with only one component then instead of creating BOM ALT 2 we update the existing ALT 1 BOM with ECN, so it deletes the existing components and updates the new one. So suppose we updated the ALT BOM 1 valid from 01.12.2024 then it will update the valid to as 01.12.2024 for existing 3 components and 31.12.9999 for new updated BOM component. My question here is if the existing 3 components gets updated with valid to date as 01.12.2024 then why the STPO table still shows it as 31.12.9999; why it's not updated with 01.12.2024? Is the Valid_To field on STPO is not linked with DATUB field?

Any help will be highly appreciated.