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# Integrations call error: [GLtransactions] Leverancier (type)

**Solution:**

Most likely the creditor has not been created / designated as a supplier in Exact Online. 

1. In Exact online, go to Accounts > Suppliers > Overview. There you will find a list of all the creditors. 
2. Select the corresponding employee and click on **Edit**
3. Check if the **Supplier** box has been checked.