First of all, it needs to be made clear that as long as the users can see the Post button in create supplier invoices App, then users can see the Reverse button. By the same logic, if the reverse button is not visible to the user, then this user will also not be able to see the Post button. Because both Post and reverse are theoretically operations of posting invoice, the authorization involved in them cannot be split.

• If users business requirement is to hide the Post button for a user and user can accept this user without seeing the reverse button, then please refer to the content in this community link. After using the best solution in the community to solve it, the effect of hiding the Post/Reverse button can be achieved.

Community link：https://community.sap.com/t5/enterprise-resource-planning-q-a/how-to-restrict-the-authorization-of-u…

• If users business requirement is to restrict post supplier invoice but can reverse supplier invoice, please refer to KBA 0003719298 “Cannot split the authorization to post and reverse supplier invoices in SAP S/4HANA Cloud“, which contains workaround for user reference.

KBA 0003719298 Cannot split the authorization to post and reverse supplier invoices in SAP S/4HANA Cloud

Best Regards,

Daisy