# Customer References
To validate your solution's effectiveness, you need to collect feedback from satisfied customers through our Customer Satisfaction Survey.
#### Survey Requirements
You must provide at least 5 local SME customer references who meet the following criteria:
* Current users of your solution
* Have used the solution for at least 6 months
* Are not affiliated to each other or to you as the solution provider
* May be contacted by IMDA for verification purposes
Customer requirements may vary by solution category, with different sectors having specific criteria that must be met. Please refer to the [detailed requirements](/pre-approval-guide/stage-1-vendor-self-assessment/requirements-of-satisfied-customer.md) for your specific solution category to ensure your customers qualify.
#### How It Works
**Step 1: Generate Your Survey Link**
Use the "Generate Link" button below to create a unique Customer Satisfaction Survey link for your solution. Note that you must first complete the "Solution Name" field under "Solution Information and Details" before you can generate a link.
**Step 2: Finalise and Lock**
Once you're satisfied with your solution name and ready to proceed, use "Finalise Survey Link" to permanently lock the link. After finalisation, you will not be able to make any changes to the solution name or survey link.
**Step 3: Share with Customers**
Copy the generated survey link and send it to at least 5 qualified customers. Ask them to complete the survey based on their experience using your solution.
* Customers will need to log in with Singpass to verify their identity and complete the survey
* While you can send the survey to multiple customers, we will only consider the 5 references you indicate
{% hint style="warning" %}
Q: **How do I know if my customer has completed a survey?**
A. 1. You can contact your customer directly to confirm.
2. Alternatively, you can send a request via this [form](https://form.gov.sg/68117f6fa667a54847523fd2) and select the "Find out if my customer has completed the customer satisfaction survey" option.
{% endhint %}
**Step 4: Complete Customer Details** After your customers have confirmed they've completed the survey, fill in their details in the section below.
For Attach Invoice field, please visit [invoice requirements](/pre-approval-guide/stage-2-vendor-application/preparing-submission/list-of-documents-required/invoices-requirement.md) to understand the right invoice format to provide for evaluation.
{% hint style="warning" %}
**Important Reminder**
Press Save Draft periodically. Information is not saved automatically.
{% endhint %}
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