Common Issues

Connection issues

"Invalid scope param" error when connecting monday.com

This is the most frequently reported issue with the monday.com destination. The error {"error":"invalid_scope","error_description":"Invalid scope param"} appears during the OAuth authorization step.

Most likely cause: Third-party cookies are blocked in your browser.

Fix 1 — Allow third-party cookies:

1. Open your browser's cookie settings and allow third-party cookies.

2. Reload the Coupler.io page and retry the connection.

Fix 2 — Use two tabs (if Fix 1 doesn't help):

1. Open two browser tabs.

2. Log in to Coupler.io in one tab and monday.com in the other.

3. With both sessions active, retry installing and authorizing the Coupler.io app from within monday.com.

Fix 3 — Try incognito mode: Open Coupler.io in an incognito/private window, where cookie restrictions are often different, and attempt the connection again.

If none of the above resolves the issue, contact Coupler.io support and include a screenshot of the exact error message. The scope issue can occasionally be caused by a configuration problem on the platform side that requires investigation.

Coupler.io app not appearing during monday.com authorization

If the Coupler.io authorization prompt doesn't appear or the connection silently fails, the Coupler.io app may not be installed in your monday.com account.

Fix: Go to the monday.com app marketplace and install the Coupler.io app before attempting to connect from Coupler.io. Authorization will not work without this step completed first.

Data issues

New columns are created on every Append run instead of reusing existing ones

This is expected behavior for Append mode. On the very first run, Coupler.io creates the board columns. On subsequent runs in Append mode, new rows are added to those existing columns correctly.

However, if your source schema changes between runs (e.g., a new field appears or a column is renamed), Coupler.io will create additional columns for the new fields rather than overwriting old ones.

Fix: Keep your source column names consistent across runs. If you need to restructure your data, consider switching to Replace mode, which rebuilds the board from scratch on each run.

Data appears in the wrong board or workspace

This can happen if you selected the wrong workspace or board during setup, or if a new board was created unintentionally.

Fix: Open your data flow, go to the destination settings, and verify the workspace and board selected. Update them if needed and run the data flow again. If Replace mode is active, the correct board will be populated on the next run.

Permission errors

Authorization fails with a permissions error in monday.com

If your monday.com account doesn't have sufficient permissions to install apps or connect third-party integrations, the OAuth flow will fail.

Only monday.com account admins can install apps from the marketplace. If you're not an admin, ask your monday.com administrator to install the Coupler.io app on your behalf before you attempt to connect.