FAQ
Don't see your question? Contact our Support team via the chat in your workspace or on our website.
General
What is a destination?
In the era of data-driven decision-making, effective data management is crucial for the success of businesses. One solution is the cloud data warehouse, a large-scale data storage and analysis system that harnesses the power of cloud computing. Cloud data warehouses provide a scalable, reliable, and cost-effective method of storing and analyzing large amounts of data in real-time. These data warehouses are the destinations you connect to Weld, allowing your company to become a data-driven business, ready to extract the necessary insights with ease. Read more about these destinations here →.
What is a Weld Managed Big Query Destination?
A Weld Managed BigQuery is a Destination on Google Cloud. It is fully set up by Weld for you, and it is free to use through our platform, up to 1TB of stored data and 5TB queries per month. Learn more here.
Can I connect my BI tool to a Managed Big Query?
Connecting to your BI tool is not available on the Weld Managed Big Query instance. We recommend setting up your own destination before establishing the connection to your visualization tool. Discover more about connecting your own destination to Weld here.
How do I connect my destination to Weld?
Connecting your destination to Weld is done during the initial set up of the account. In the first step of the process, when asked Where should your data be stored?, select a Custom Destination from the list and you will be guided on how to connect it to Weld.
Does Weld store my data?
Weld does not store your data. We are only responsible for the movement of your data from source to destination, meaning we simply help you transfer and make it ready for analysis, activation, and to provide you the best insights.
Connectors
What is a connector?
A connector links our tool to apps, files, ad platforms, and databases to move data to and from them. Each connector supports as many syncs as you need. Click to learn more.
What data sources can I connect to Weld?
Weld supports a wide range of data sources, including databases, cloud storage, and APIs. You can find the full list of supported data sources here.
What if I can't find the connector I need?
We are constantly building new integrations based on customer demand, so let us know by reaching out to one of our specialists through the chat on your workspace! We may be able to add it to the backlog.
However, if you need the data straight away, we recommend that you build a custom connector yourself.
I set up a sync but I can’t see my data.
Initial syncs can take a while to load as they are syncing all the historical data. When the table status says Completed, then the data has successfully finished syncing for that table. Please note that some tables may sync quicker than others depending on the volume of data.
Does Weld need to connect directly to my production database?
No, with high throughput systems, running a high frequency sync with a production database can put unnecessary load onto the running services. One mitigation technique is to create a read replica.
How do I re-authorize my connector / authenticate a connector with a new user?
If you need to re-authorize your connector, the process is very simple: click on workspace Settings → Connections → select the connector you wish to authorize → Configuration → Authorize.
How do I run a manual sync of a table?
To manually run a table you can click on the sync you want to run in your Data Sources menu in your workspace, find your table, click the 3 dots beside it, and click Run sync now. If you would like to manually run the entire sync, simply stop and restart the connector.
Can I set up multiple data sources to the same connector?
Yes, with each unique connector you can set up as many data sources as you need. For example, you can connect multiple Shopify stores or Facebook Ad accounts using just one connector for each. Click to learn more.
What are Beta and Soon connectors?
Beta connectors are in our development backlog. They are not available yet but Weld's engineering team is currently working on them. As soon as they are released, an update will be posted on our blog, but if you would like to test them with us a bit earlier, get in contact with the team through the chat in your workspace or on our website.
Soon connectors are those we have in our roadmap but not currently being worked on. We will post releases of new connectors on our blog.
Platform
I deleted data in the source but I still see it in Weld?
Weld syncs new and updated rows of data. We do not remove deleted rows. To remove these rows from the database you would need to run a full sync of the table in question.
Can I set up multiple accounts?
Yes, you can create new accounts by clicking your workspace name on the bottom left corner and click Create new destination.
Can I use Python in Weld?
The Weld account only supports SQL, but a Python editor can be used with your data directly from your data destination.
Are my SQL queries stored in Weld?
No, all SQL queries published by you are stored in your destination.
Draft models will still persist if you close the app, but will be auto-archived if unused for 24 hours.
Do I need to know SQL to use Weld?
No, you don't! With 
Ed, our AI SQL assistant you can get started using your data without any prior SQL knowledge. If you are still in the beginning of your SQL journey you can check out our SQL course here.
If you do not want to learn SQL we also work with great consulting partners, who can help you build a strong data stack. See more here.
How do I rename one of my data sources?
Data sources can't be renamed after being created, as the name can't be changed in the destination. If you need to rename a source you will have to delete it and create it again.
I am getting an error when trying to publish a table.
Check your SQL and see if it runs successfully first, and check to see if you have any columns with the same names. You can always ask our AI SQL assistant, Ed, to help you out figure out the problem!
Is it possible to set notifications/alerts whenever a connector or table fails to materialize?
Yes, email alerts can be enabled in the Settings → Notifications tab. In the same menu you can also set up Slack notifications.
Why am I only seeing the last month of data when I set up my connector?
When we are syncing historical data from your source the last 30 days of data are synced first. A full sync is then ran on all historical data.
Can I re-set the historical data timeframe?
If you selected a specific historical data timeframe when setting up the connector this can't be altered. To sync older historical data you will need to set up the data source once again.
How to change my password for signing into Weld?
To change your password you can click Forgot password? on the log-in screen and you will be sent an email with instructions on how to reset your password.
Billing
What are Active Rows?
Active Row refers to any data row that is updated or inserted during the data syncing process between data sources using our platform. Active Rows typically represent 10-20% of the total rows synced. You can track your usage by navigating to the Settings page and selecting Billing in the Weld app.
There is a maximum number of Active Rows that may be synced under each subscription plan, described in our Fair Usage Policy.
Is there a free plan available for Weld?
Weld does not offer a free plan at this time. However, we understand the importance of trying out a product before committing to a subscription. Therefore, we provide a 14-day trial period with no upfront credit card requirement. This trial period allows you to explore Weld's features and functionalities before deciding to upgrade to a paid plan. Sign up to start your Weld trial today.
How can I see my row usage?
You can view your row usage in the Data Sources → Usage tab. Rows can be viewed by connector or table breakdown, showing both total rows and active rows synced.
If I upgrade to the Premium version now during my test, will that take me out of the trial period?
Upgrading to a paid plan during your trial will not end the trial period. You will still have the 14 days of free usage.
If I pay for an annual plan can I increase my row usage during the year?
Yes, the annual plan can be upgraded to a higher tier subscription plan at any time during the year.