Applying Institutional Stamps & Concurrency-Safe Sequential Numbering

1. Overview & Business Value#

Official corporate letters require verified sequential reference numbers (e.g., ATS/OUT/2026/0491).

1. Concurrency-Safe Reference Sequencing#

SmartERP implements database-level atomic locking (SELECT ... FOR UPDATE) in addons/smarterp_letters/models/letter_numbering.py, guaranteeing that two simultaneous outgoing letters can never be assigned duplicate reference numbers.

2. Prerequisites & Access Permissions#

• Required Modules: smarterp_documents, base, web
• Security Group: Internal User (Technical ID: base.group_user)
• Master Data Dependencies: Established corporate settings, defined role permissions, and active records.

3. Step-by-Step UI Execution & Verification#

Step 1: Navigating to the Module Interface#

1. Access your SmartERP instance at https://smarterp.et/odoo.
2. Open the main App Switcher and select the operational application.
3. Select the target view or configuration form.

{screenshot:50-digital-stamps-and-sequential-numbering-step1-navigation}

Step 2: Executing Transactional Operations#

1. Fill in required parameters according to institutional procedures.
2. Validate entries and confirm execution.
3. Review updated record state in the chatter audit trail.

{screenshot:50-digital-stamps-and-sequential-numbering-step2-verification}

4. Advanced Configuration Points#

• Automated Tasks (Crons): Dedicated background crons manage recurring tasks and state transitions.
• Multi-Company Rules: All operational records are strictly isolated to Company 1 (Ashewa Technology Solutions S.C.).

5. Comprehensive Troubleshooting Matrix#