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Hide Update Quantity Button
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This module hides the "Update Quantity" button in product forms for users who are not in the ERP manager group.

Configuration
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No configuration required. Once installed, only users belonging to the base.group_erp_manager group can access the "Update Quantity" button.

Usage
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After installing this module:
- Users in the ERP Manager group (base.group_erp_manager) will continue to see the "Update Quantity" button
- All other users will not see the button in product forms