Workflow overview and expected result:

1. Two companies are WW and FL.
2. In company WW, the user creates an invoice for $10,000 to FL, Odoo automatically creates the vendor bill in FL for vendor WW.
3. Vice versa, when FL invoice $2000 to WW, Odoo automatically creates the vendor bill in WW for vendor FL.
4. In WW company, there is account receivable (AR) $20000 from FL and account payable (AP) $10000 to FL. Hence, we can reconcile the AR and AP so there is a $8000 AR balance.
5. In FL, there is AR $2000 from WW and $10000 AP to WW. Hence, we can reconcile the AR, AP so there is a $8000 AP balance that FL has to pay WW.

Configuration:

1. When selecting an FL company, check the ‘inter-company transactions’ and ‘generate bills and refunds’.
   
2. Repeat step 1 when selecting WW company.
3. In company WW, create an invoice to FL $10,000 in the red image below.
   Odoo automatically creates a bill in FL company with the vendor WW in the yellow image below.
   
4. In company FL, create an invoice to WW at $10,000 in the red image below.
   Odoo automatically creates a bill in WW company with the vendor FL in the yellow image below.
   
5. In WW, open journal items.
   Reconcile partner FL (counter company) $10000 receivable and $2000 payable.
   
   This is the result
   
6. In FL, open journal items.
   Reconcile partner WW (counter company) $2000 receivable and $10000 payable.
   
   Choose to allow partials
   
   This is the result that in FL, there is still $8000 AP pending to paid to WW.