# FAQ: Making a Reservation from the Back Office – Modifying Quantity and Availability

### **Q: When I change the quantity of an order in the back office, why doesn't the number of places on the product page change?**

**A:** This is normal behavior for Yoplanning. Changing the quantity directly in an order has **no impact** on the availability of places in the corresponding session. This action is intended solely to record specific information independent of place management.

***

### **Q: How do I get the changed quantity to update the actual availability?**

**A:** If you really want to add a participant and it impacts the number of available places, you must make the change **from the session** (and not from the order):

1. Open the relevant session in the schedule.
2. Add the participant.
3. The system will automatically prompt you to update the order and price.

So the availability will be updated both in the field session and in the order

***

### **Q: Is there a solution to correct an order already registered with an incorrect quantity?**

**A:** Yes. You can **reissue the order** and change the quantity, but this will not change the availability. To also correct the availability, you will need to go through the session, as explained above.

***

### **Directions for use**

* **Always prioritize editing in session** if actual availability needs to be adjusted.
* Use the modification in the order only to correct an administrative or accounting element unrelated to the places actually occupied.

***

### **Common Problems and Solutions**

| Issue                                                    | Solution                                                                                   |
| -------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
| Quantity changed in the order but availability unchanged | Change to be made in the session, not in the command                                       |
| Incorrect prices after adding participants               | Check the update from the session, the system will offer to adjust the price automatically |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.yoplanning.support/en/faq/faq-generale/faq-prise-de-reservation-depuis-le-back-office-modification-de-quantite-et-disponibilites.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
