# Update - Cancel Challan UI Flow
## **Overview**
Challans are created using create Challan, it is explained in[ Challan Creation](/local-governance/access/local-governance-stack/mcollect-mcs/mcollect-service-configuration/echallan-ui-details/challan-creation.md)
## Workflow Details
Provide Employee to update / Cancel / Pay Challan against a Challan number.
Route -[ mSeva](https://qa.digit.org/digit-ui/employee/mcollect/challansearch/PB-CH-2021-07-27-000732)
### **View Challan**
After searching for a Challan with a click on the Challan number it navigates to viewing the Challan details. The view Challan details is mentioned over[ digit-ui-internals/EmployeeChallan.js at main · egovernments/digit-ui-internals](https://github.com/egovernments/digit-ui-internals/blob/main/packages/modules/mCollect/src/EmployeeChallan.js)
## **Technical Implementation Details**
### **Cancel Challan**
Action modal - This comes up on the click of cancel Challan.
Click on yes, the challan will be cancelled and users will be routed to the acknowledgement screen.
File path of acknowledgement screen:[ digit-ui-internals/EmployeeChallanAcknowledgement.js at main · egovernments/digit-ui-internals](https://github.com/egovernments/digit-ui-internals/blob/main/packages/modules/mCollect/src/pages/employee/EmployeeChallanAcknowledgement.js)
### **Update Challan**
Update Challan screen, This comes up on the click of update Challan ([mSeva](https://qa.digit.org/digit-ui/employee/mcollect/modify-challan/PB-CH-2021-07-26-000727) ).
File path:[ digit-ui-internals/index.js at main · egovernments/digit-ui-internals](https://github.com/egovernments/digit-ui-internals/blob/main/packages/modules/mCollect/src/pages/employee/EditChallan/index.js)
Clicking on the Update Challan option updates and routes users to the acknowledgement screen.
File Path:[ digit-ui-internals/EmployeeChallanAcknowledgement.js at main · egovernments/digit-ui-internals](https://github.com/egovernments/digit-ui-internals/blob/main/packages/modules/mCollect/src/pages/employee/EmployeeChallanAcknowledgement.js)
### **Pay Challan**
The common pay screen is visible once the user clicks on the Pay Challan/Proceed button to payment from the acknowledgement screen.
This pay screen is common for all the modules.
Clicking on the Collect Payment button payment allows users to collect and route to the acknowledgement screen it is common for all modules.
Click on Print Receipt, `qa.digit.org/collection-services/payments/{challanBusinessService}/_search` (we need to configure bussinessServices to the respective roles in the MDMS like below ) API will get the payment response, by using that response again we need to call `pdf-service/v1/_create` API.
**Data fetch, load and render**
* Once the Challan is searched using `echallan-services/eChallan/v1/_search` API, then we can search for bill details using `billing-service/bill/v2/_search` for the tax head breakup information.
* For Updating/Cancelling the Challan, we can use the API `/echallan-services/eChallan/v1/_update`.
* download/print Challan using `egov-pdf/download/UC/mcollect-challan` API.
## **Localisation Module**
`rainmaker-uc`
## **API Used**
1. `egov-mdms-service/v1/_search`
2. `echallan-services/eChallan/v1/_update`
3. `egov-pdf/download/UC/mcollect-challan`
4. `echallan-services/eChallan/v1/_search`
5. `billing-service/bill/v2/_search`
6. `collection-services/payments/ADVT.Gas_Balloon_Advertisement/_search` **we need to pass the businessService** (`collection-services/payments/{businessService}/_search` ).
7. `collection-services/payments/_create`
8. `billing-service/bill/v2/_fetchbill`
9. `pdf-service/v1/_create`
## **Role Action Mapping**
| API | Roles | Action ID |
| --------------------------------------------------------------------- | -------- | --------- |
| `egov-mdms-service/v1/_search` | | `954` |
| `echallan-services/eChallan/v1/_update` | `UC_EMP` | `2117` |
| `egov-pdf/download/UC/mcollect-challan` | `UC_EMP` | `2115` |
| `echallan-services/eChallan/v1/_search` | `UC_EMP` | `2114` |
| `billing-service/bill/v2/_search` | `UC_EMP` | `1861` |
| `billing-service/bill/v2/_fetchbill` | `UC_EMP` | |
| `collection-services/payments/ADVT.Gas_Balloon_Advertisement/_search` | `UC_EMP` | `2138` |
| `collection-services/payments/_create` | `UC_EMP` | `1862` |
| `pdf-service/v1/_create` | `UC_EMP` | `1834` |
## **Related Links**
| Related Title | Documentation |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| MCollect Create Challan | [Challan Creation](/local-governance/access/local-governance-stack/mcollect-mcs/mcollect-service-configuration/echallan-ui-details/challan-creation.md) |
| MCollect Search Challan | [mCollect - Technical Documentation](/local-governance/access/local-governance-stack/mcollect-mcs/mcollect-service-configuration/echallan-ui-details/mcollect-ui-flow.md) |
---
# 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.digit.org/local-governance/access/local-governance-stack/mcollect-mcs/mcollect-service-configuration/echallan-ui-details/update-cancel-challan-ui-flow.md?ask=
```
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.
digit-ui-internals/EmployeeChallan.js at main · egovernments/digit-ui-internals](https://github.com/egovernments/digit-ui-internals/blob/main/packages/modules/mCollect/src/EmployeeChallan.js)
## **Technical Implementation Details**
### **Cancel Challan**
Action modal - This comes up on the click of cancel Challan.
Click on yes, the challan will be cancelled and users will be routed to the acknowledgement screen.
File path of acknowledgement screen:[