Adobe AD0-E709 Adobe Commerce Developer Expert Online Training
Adobe AD0-E709 Online Training
The questions for AD0-E709 were last updated at Jun 19,2025.
- Exam Code: AD0-E709
- Exam Name: Adobe Commerce Developer Expert
- Certification Provider: Adobe
- Latest update: Jun 19,2025
An Adobe Commerce developer adds a new extension attribute to add an array of values to the invoices that are fetched through the APIs.
After a while, their technical manager reviews their work and notices something wrong with the extension_attributes.xml file that the developer created in their module: extension_attributes for="MagentoSalesHotelOrderInvoiceRepository"> attribute code"my_code" type=string]’’> </extension_attribute>
What is the problem with this xml snippet?
- A . The extension attribute references the repository instead of the interface it implements (MagentoSalesApiinvoiceRepositoryinteface
- B . The type is wrong, string[] should be replaced with array.
- C . The extension attribute references the wrong interface it should have referenced the MagentoSalesAPiInvoiceinterface.
An Adobe Commerce developer adds a new extension attribute to add an array of values to the invoices that are fetched through the APIs.
After a while, their technical manager reviews their work and notices something wrong with the extension_attributes.xml file that the developer created in their module: extension_attributes for="MagentoSalesHotelOrderInvoiceRepository"> attribute code"my_code" type=string]’’> </extension_attribute>
What is the problem with this xml snippet?
- A . The extension attribute references the repository instead of the interface it implements (MagentoSalesApiinvoiceRepositoryinteface
- B . The type is wrong, string[] should be replaced with array.
- C . The extension attribute references the wrong interface it should have referenced the MagentoSalesAPiInvoiceinterface.
An Adobe Commerce developer adds a new extension attribute to add an array of values to the invoices that are fetched through the APIs.
After a while, their technical manager reviews their work and notices something wrong with the extension_attributes.xml file that the developer created in their module: extension_attributes for="MagentoSalesHotelOrderInvoiceRepository"> attribute code"my_code" type=string]’’> </extension_attribute>
What is the problem with this xml snippet?
- A . The extension attribute references the repository instead of the interface it implements (MagentoSalesApiinvoiceRepositoryinteface
- B . The type is wrong, string[] should be replaced with array.
- C . The extension attribute references the wrong interface it should have referenced the MagentoSalesAPiInvoiceinterface.
An Adobe Commerce developer adds a new extension attribute to add an array of values to the invoices that are fetched through the APIs.
After a while, their technical manager reviews their work and notices something wrong with the extension_attributes.xml file that the developer created in their module: extension_attributes for="MagentoSalesHotelOrderInvoiceRepository"> attribute code"my_code" type=string]’’> </extension_attribute>
What is the problem with this xml snippet?
- A . The extension attribute references the repository instead of the interface it implements (MagentoSalesApiinvoiceRepositoryinteface
- B . The type is wrong, string[] should be replaced with array.
- C . The extension attribute references the wrong interface it should have referenced the MagentoSalesAPiInvoiceinterface.
Create a data patch copying those exceptions to their original destinations like vendor/magento/ framework /except Ion/ to replace original files.
An Adobe Commerce developer is being tasked with creating a new cron job to run a method that has already been written.
What are the minimally required steps to accomplish this?
- A . Create crontab.xml and cron_groups.xml files to assign the new job to a cron group.
- B . Create a crontab.xml file and set a schedule for the new cron job.
- C . Create a crontab.xml file and a new system configuration in system.xml for the schedule.
An international merchant is complaining that changes are taking too long to be reflected on the frontend after a full product import.
Thinking it may be database issues, the Adobe Commerce developer collects the following entity counts;
• Categories: 900
• Products: 300k
• Customers: 700k
• Customer groups: 106
• Orders :1600k
• Invoices: 500k
• Creditmemos: 50k
• Websites: 15
• Stores: 45
What is a probable cause for this?
- A . The combination of the number of orders, customers, invoices and creditmemos is too big. This leads to a huge amount of values being stored in the customer grid index which is too large to be processed at a normal speed.
- B . The combination of the number of products, customer groups and websites is too big. This leads to a huge amount of values being stored in the price index which is too large to be processed at a normal speed.
- C . The combination of the number of products, categories and stores is too big. This leads to a huge amount of values being stored in the flat catalog indexes which are too large to be processed at a normal speed.
An Adobe Commerce developer is being tasked with storing additional data for products added to the cart in the quote. A newcolumn should be added to the Quote_item table to store the value-Following best practices, how would the developer extend the database to accomplish this?
A)
B)
C)
- A . Option
- B . Option
- C . Option
What are two functions of a resource model? (Choose two.)
- A . It executes create, retrieve, update and delete actions for an entity
- B . It loads lists of entity models
- C . It is made available in the Magento API for the purpose of data manipulation
- D . It maps an entity to one or more database rows
There are two different configurable products which both share one variation. The shared variation is represented by the same simple product.
A customer added both configurables to the cart with the same selected variation?
How will they be displayed?
- A . As two separate line items with quantity 1 each
- B . As one line item which lists both configurable products with quantity 1 each
- C . As one line item of the first product with quantity 2
- D . As one line item of the second product with quantity 2
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