Ensure that vendors who currently have checks waiting to be printed have a valid Tax ID number in their Vendor record.

1. Go into Records > Vendors
2. Open up one of the vendor records for a vendor you are trying to print checks for
3. Verify that they have a valid Tax ID number
4. Save and close the vendor, try to print their check again

If they do not have a valid number, or if they do not need a number there at all, make sure to leave the field blank.

If adding Insurance Carrier information to Student records, leaving the policy number blank will cause this error.  Ensure that a number is added.

OR

1. Go into Records > Vendors
2. Open up one of the vendor records for a vendor you are trying to print checks for
3. Verify that they have a valid Tax ID number
4. Copy the Tax ID
5. Delete Tax ID from vendor record. Save
6. Paste Tax ID number back into vendor record. Save and close
7. Proceed with printing checks