Ethiopian Geez (Pagumen) & Gregorian Dual Calendar Computation Engine

1. Overview & Business Value#

Date conversion in SmartERP utilizes the invariant Julian Day Number (JDN) as an intermediate mathematical bridge.

1. Mathematical Conversion Principles#

The Ethiopian year begins on September 11 (or September 12 in Gregorian leap years). Every four years, the 13th month of Pagumen (ጳጉሜን) expands from 5 days to 6 days.

$$JDN = \text{GregorianToJDN}(Y_G, M_G, D_G) \iff \text{JDNToEthiopian}(JDN) \rightarrow (Y_E, M_E, D_E)$$

This mathematical bijection ensures that no date calculation error or off-by-one day drift can ever occur during conversions.

2. Prerequisites & Access Permissions#

• Required Modules: smart_et_calendar, 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:20-ethiopian-geez-and-gregorian-dual-engine-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:20-ethiopian-geez-and-gregorian-dual-engine-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#