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# What to do if I make a mistake with a Bill

Billing is an extremely important function within a clinic and it must be handled with utmost care. However, mistakes are inevitable and they may occur for various reasons.

So, what happens if you make a mistake with a bill on Clinicea?  
To answer this question, let us have a look at some examples of the mistakes that may occur while processing a Bill and how it can be rectified.

**_Example 1:_**

**_Problem:_**  
You have created a Bill but have entered incorrect items on the Bill.

**_Solution:_**  
Once a bill has been saved, bill items cannot be modified. Simply, cancel the Bill with incorrect items and create a new Bill. Please have a look at [How to Cancel a Bill](https://help.clinicea.com/en/article/how-to-cancel-a-bill-1dgjycm/).

**_Example 2:_**

**_Problem:_**  
You have created a bill but have entered the wrong transaction date, Or assigned the Bill to the wrong Practitioner.

**_Solution:_**  
Search for the Bill in Financials, open and edit the Bill to enter the correct information. Once you open the Bill for editing, click on the **Calender icon** under **Transaction Date** to enter the correct transaction date. Similarly, click on the practitioner name under **Practitioner** to assign the Bill to correct Practitioner. Also, if you need to add any comments internally regarding the modification made to the Bill, click on the link **No Internal Comments** under Internal Comments and add a comment.  
Please have a look at [How to Edit a Bill](https://help.clinicea.com/en/article/how-to-edit-a-bill-nsu2bb/).

![](https://storage.crisp.chat/users/helpdesk/website/474715c48121f000/34bc9aa6-fcdd-4fa4-ab0e-27c62c_us2hlo.png)

**_Example 3:_**

**_Problem:_**  
You have entered an incorrect Payment amount in the Bill.

**_Solution:_**  
If you have entered the the incorrect Payment amount, it is not the Bill that needs to be changed but the Payment. Therefore, cancel the Payment and take a new payment. Please have a look at [How to Cancel a Payment](https://help.clinicea.com/en/article/how-to-cancel-a-payment-fy39fg/).