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Re:Open-source alternatives to popular B2B tools by throwaway744678 on Thursday July 22, 2021 @04:45AM (#27916789)
Odoo (core) is indeed open-source, but some of the apps (modules) you mentioned are part of the "Enterprise" which require you to buy a licence.

Disclaimer: happy (paying) Odoo customer!

Re:Open-source alternatives to popular B2B tools by pinky07 on Thursday July 22, 2021 @07:26AM (#27917624)
No, all the apps above are part of Odoo Community. (So, open source)