# Q-and-A for ELR

Source: https://developer.avalara.com/products/e-invoicing/integration-guides/elr/lbp6527542929684/

Guide: E-Invoicing and Live Reporting

# Q-and-A for ELR

This section addresses the most common technical questions raised during the E-Invoicing and Live Reporting (ELR) integration process.

It’s designed for technology partners and implementation teams responsible for configuring and maintaining ELR connectivity in their applications.

-   **[Why do we need company ID mapping?](/elr/uek2600453704100/)**  

-   **[Why can’t we automatically add all companies from our application to Avalara?](/elr/rss5573864034369/)**  

-   **[Why does the user need to configure mandate logic?](/elr/zof8809145521741/)**  

-   **[Is it enough to use the customer record to determine the mandate?](/elr/etp0063051253534/)**  

-   **[Can Avalara provide standard conditions for each mandate?](/elr/rjh5111339616511/)**  

-   **[Does the user need to configure every supported country mandate?](/elr/mwb0099663544863/)**  

-   **[What conditions can trigger a mandate?](/elr/zyj6527175186003/)**  

-   **[Why are mandate mappings critical in an ELR integration?](/elr/hft0572984961153/)**  

-   **[Do I need a developer to modify mappings?](/elr/jeh9206551478939/)**  

-   **[Can users view how ERP fields map to UBL fields?](/elr/upf7792180056962/)**