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 maximum allowed number of simultaneous connections.

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

Why the NS0593 Sync Error Happens in NetSuite

The NS0593 error occurs when there are more than five active connections to your NetSuite account at the same time.

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

The limit can be reached if:

• Multiple members are exporting reports at the same time.
• Multiple Workspaces are syncing simultaneously.
• Other third-party integrations are connected to NetSuite.
• Background integration jobs are still running.
• A previous sync did not close cleanly.

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

This is a NetSuite system limitation, not a configuration issue in the Workspace.

How to Fix the NS0593 Sync Error

No configuration changes are required.

Follow the steps below to resolve the error.

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.

Reduce Simultaneous Exports

If the error continues:

• Ask other members to pause exports temporarily.
• Avoid running multiple syncs at once.
• Confirm that no other integrations are actively syncing with NetSuite.

Once active connections drop below the limit, syncing will resume normally.

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 typically sufficient. Once existing connections close, syncing should succeed.

Do I Need to Reconnect the Integration?

No. Simply retry the sync after the connection count drops.