Problem

You are getting an error message like this when testing your Salesforce cart or running Order Download:

Make sure you have given read access to the column & entity listed in the error message below.

INVALID_FIELD: SELECT Id, AccountId, CreatedDate, PoNumber, OrderNumber, TotalAmount ^ ERROR at Row:1:Column:36 No such column 'PoNumber' on entity 'Order'. If you are attempting to use a custom field, be sure to append the '__c' after the custom field name. Please reference your WSDL or the describe call for the appropriate names.

Solution

This is due to a permissions issue in Salesforce.

1. Look at the entity and column name displayed in the error message.
   1. In the sample above the entity is "Order" and the column is "PoNumber"
2. Navigate to the specific field mentioned in the Salesforce Setup menu.
3. Click the Set Field-Level Security button.
4. Make sure it has read access or above.