NS0593 Sync Error in NetSuite Integration

If you see the error:

NS0593 Sync Error: There are too many open connections to the NetSuite company at this moment. Please try again in a few minutes.

This means NetSuite has reached its connection limit.

This error is temporary and related to NetSuite’s concurrency restrictions.

Why the NS0593 Sync Error Happens in NetSuite

The NS0593 error typically indicates there are more than five open connections to your NetSuite company at the same time.

NetSuite limits concurrency to five active connections to prevent system overload.

Even though Expensify runs one job at a time, the limit can be reached if:

• Multiple people are exporting reports simultaneously.
• Multiple Workspaces are syncing at the same time.
• Other third-party integrations are connected to NetSuite.
• Background integration jobs are still running.
• Scheduled scripts or workflows are active in NetSuite.

When the connection limit is exceeded, NetSuite temporarily blocks additional sync attempts.

This is a system concurrency limitation, not a credential or bundle configuration issue.

How to Fix the NS0593 Sync Error

No configuration changes are required.

Wait and Retry the Sync

1. Wait a few minutes to allow existing NetSuite connections to close.
2. Retry syncing the Workspace.

On web:

1. Go to the navigation tabs on the left and select Workspaces.
2. Select your Workspace.
3. Click Accounting.
4. Click the three-dot menu next to the NetSuite connection.
5. Click Sync Now.

On mobile:

1. Tap the navigation tabs on the bottom and select Workspaces.
2. Select your Workspace.
3. Tap Accounting.
4. Tap the three-dot menu next to the NetSuite connection.
5. Tap Sync Now.

If the issue continues, confirm that no other large exports, scripts, or integrations are running in NetSuite at the same time.

FAQ

Does the NS0593 Sync Error Mean Something Is Broken?

No. This is a temporary concurrency limit imposed by NetSuite and does not indicate a configuration issue.

How Long Should I Wait Before Retrying?

Waiting a few minutes is usually sufficient. Once active connections close, syncing should resume normally.

Can This Error Affect Multiple Workspaces?

Yes. If multiple Workspaces or integrations are syncing at the same time, they may trigger the NetSuite connection limit.