# How to edit TAT Master

Module: CORE Platform
Module slug: core-platform
Source URL: https://helpcentre.shipsy.io/en-US/shipsy/article/nrczH6V3-how-to-edit-tat-master
Article ID: nrczH6V3
Breadcrumbs: CORE Platform > Setup Section > Express Booking Masters > How to edit TAT Master

---
TAT(Turn-Around-Time) Master helps in defining the fields required for achieving the Turnaround time (TAT). TAT is the amount of time taken to complete a process or fulfil a request.

In the dashboard :

* Click on the hamburger menu () → Setup → Express Booking Masters () → TAT Master

  ![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_003_5207c55eba.png)![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_004_01ca86ee56.png)![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_005_ff59f0dd34.png)

* Click on the **Update** button.

![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_006_2ef2ebcb6a.png)

* A form shall appear with the excel to be uploaded to edit the TAT Masters.

![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_007_43de5ee930.png)

* Fill up the sample excel sheet and after uploading the filled sheet of the masters, click on the **Yes** button.

![image.png](/kb-images/how-to-edit-tat-master--nrczh6v3/img_008_dda29403d6.png)

* You’ve successfully edited an existing set of TAT Masters.