Define your custom business logic in Zoho Projects
Every organization has a defined way of executing projects. There are clear expectations around how tasks should move, when projects should progress, and which actions require validation. When these rules are consistently followed, projects remain structured and predictable.
CodeX Scripts in Zoho Projects brings that structure directly within your projects.
CodeX Script allow users to define custom logic that runs automatically when a task or project is created, updated, or deleted. Users can validate conditions, block actions, or trigger logic based on how the process is designed.
Let’s walk through an example.
In a manufacturing quality control process, every production batch report must be validated before it is approved. One of the key tasks in the QC project is "Validate batch records and test reports." This task acts as a formal approval checkpoint.
The goal is simple:
When batch reports are rejected, they must go through proper verification before the process can move forward.
Here’s how CodeX Scripts help enforce this, supported by other Zoho Projects features:
Step 1: Create a project template
Create a Project Template to ensure every Manufacturing QC project starts with a consistent task structure.
Step 2: Create a Custom Function to associate in the Blueprint in the next step
Create a Custom Function to associate with the After transition for Rejected status to ensure whenever a task is marked as Rejected, the verification task is automatically created and linked as a predecessor.
The deluge code used in the case is attached below.
Step 3: Create a Blueprint for Approvals
Design a Blueprint with the task layout used for QC validation tasks, the project name and tag "validation required" as the criteria. When the task is rejected, a Custom Function is triggered and it creates a new task called “Verify Batch Reports” and links it as a predecessor.
The following status and transitions are used in the blueprint:
From Status - Transition - To Status
- Open - Process batch reports - In progress
- In progress - Send for approval - In Review
- In Review - Approved - Closed
- In Review - Not approved - Rejected
- Rejected - Send for approval (rework) - In Review.
Step 4: Enforce the Rule Using CodeX Script
Now comes the critical enforcement layer.
Create a CodeX Script to check whether the predecessor task (“Verify Batch Reports”) is still in an open-type status. If it is, the system blocks any updates to the validation task. The CodeX Script used in the case is attached below.
This ensures that the approval checkpoint cannot be bypassed. Only after the verification task is marked Closed, the CodeX Script allow updates to continue.
This structured approach can be applied to any approval-driven checkpoint such as finance reviews, compliance sign-offs, production clearances, or release validations. Wherever a task must wait for another to complete, CodeX script ensures the rule is respected.
We hope you found this post useful. If you have any questions, please contact support@zohoprojects.com.
Share your business scenarios in the comments, and we will help you structure and enforce them using CodeX Scripts.
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