Test item supply

  • You will receive a test item supply every week with items that need to be franked. These test items are addressed and have to be franked by a postal operator of your local post office.
  • It might occur that you receive some items that include transponders. The procedures explained in our instructions are always the same, no matter if these items include transponders or not.
  • As we do not want you to take on any franking costs during the measurement, we will reimburse all expenses for the franking (approx. 10-30 € on a monthly basis, two weeks refund and two weeks in advance).  There will be no additional costs at all for you.

Sending of test items

  • Please note that it is very important for the survey that you send the test items always on the planned date. For general documentation it will be helpful to note down the actual posting date on your posting plan.
  • As already mentioned, your test letters have to be franked before posting them, therefore please always bring them to the counter at your post office.

Please note: It is important that you stick to the franking method and the induction method that are mentioned in your cover letter. Please do not use any other methods. (For further information about the induction method, you can also check our FAQ section.)



Please log in to your online account: https://nu-mms.ipc.be/mmu-panel-zone/login/login.htm

Once you have successfully logged in to your account with your Panellist ID and password set by you, the following Welcome Page will be available. It will give you an overview of all important features.

Data entry Posting

After having sent the test items, please confirm the actual sending date in your online account. For the progress of the study it is very important that you enter the data on the same day as you send the items.

You will send 3 – 5 test letters per week. By clicking on ‘POSTING PLAN’, you will see your planned postings including the exact item ID and planned dates in chronological order. For entering posting information, please click ‘Send’.

A new page will open. Please select the ‘Actual Send Date’, enter the ‘Exact Send Time’ and select your ‘Sending Location’ and then click ‘Submit’.

To avoid mistakes, please enter the sending date only after having sent the test items.
Please note: If you were not able to send a test item on the planned date, it is possible to adjust the send date. In this case, please follow up with sending it on the same weekday of the following week and fill in this date as the actual sending date.

Sender Pack Registration

After you have received your weekly sender pack (test letter supply), please confirm the receipt in your online account before you start sending the items. Please click on ‘Register Received Sender Pack’  and enter the 5-digit Sender Pack ID (you will find it on the respective printed posting plan in the right upper corner). Then click ‘Submit’.

A new page will open asking you to when you received the sender pack. Please select ‘Today’, ‘Yesterday’ or ‘Other date’ and click on the little calendar to enter the date on which you have actually received the sender pack. Then click ‘Submit’.

Please note you will not be able to register your sent items if your Sender Pack has not been registered previously.

Data entry Receiving

You will receive 3 – 5 test letters per week. You can see the exact number and from which country they are in your online account under ‘RECEIVING PLAN’.

For the correctness of the collected data it is very important that you empty your mail box on a daily basis in the late evening. Please check the cover letter for exact information on the latest possible delivery of mail in your country. Furthermore, it is essential that you enter the data the same day as you receive the items.

Please make sure to always note the receipt date and weekday on the item when you received a test letter. Additionally, please keep all test letters for 3 months. Within the retention period of three months and in individual cases we may ask you questions concerning a specific test letter.

The test letters are of three different formats – small (C6) and big letters (C5 and C4).

After you have received the test items, please confirm the receipt date in your online account.
Please click on ‘REGISTER RECEIVED ITEM’, enter the Control ID / Identification Code which you can find on the document inside the test item and click on ‘Search’.

Now please enter the correct receipt date. If you cannot remember the exact receipt date, please click ‘unsure’.


Transponders are small electronic and harmless devices tracking the transit times of a test letter at certain gates within the postal systems. Please note the transponder will not track or ping or submit any data or information from your home or company. There are three different types of transponders:

  1. Passive transponders -> a label with a barcode already affixed to the test letter document
  2. Active transponders -> a separate item inserted in the test letter
  3. Dual transponders -> a combination of 1. and 2.: a label affixed to the separate item inserted in the test letter

Depending on your country, you might receive test letters with one to three different transponder types. If you will receive an active or dual transponder (please see picture below), please make sure to return these to our production unit by simply using a return envelope provided by us. Please insert one or two transponders into the return envelope depending on the instructions that come with them. Please note no franking of these envelopes is needed, as these already are Pre Paid! It is very important that you will be returning all received active and dual transponders on a regular basis – latest a week after this transponder has been received. Passive transponders do not have to be returned.

Item Queries

After having entered a sent or receipt date of a letter, you might receive an item query, if the data entered differs from the planned send or receipt date or if any other data related queries occur. This will be shown directly at the home page of your online profile at the upper part of the page (please see picture below).

Please click on  ‘Resolve Item Queries’ and fill in the outstanding data.

Sender Query

In case a query has been raised for an item which you have sent, you are asked to fill in the date, time and location as indicated in the screenshot above. After you have checked the data carefully, please click ‘Save’. Should you not be sure of the data you have entered, please click ‘I don’t know anymore’.

Receiver Query

If the data you have entered for received items has been queried, you are asked to check the date when you received the item (as shown above). Please fill in the date and click on ‘Save’ if you are sure about the date. If you are not sure about the date, please click on ‘I don’t know anymore’.

Please note: To make sure that the data you have entered is correct, we kindly ask you to always note down your sent dates on your posting plan, and the receipt dates of every test item.


Not available to Send/Receive

Ideally you are available during the entire duration of the survey or you can delegate the task to another person in case of your absence or illness. Please inform us immediately about any period in which you won’t be able to send test items (e.g. change of address, absence, holidays…).

Please click on the button ‘NOT AVAILABLE TO SEND/RECEIVE’ and thereupon on ‘+Add’.

Now fill in the start and end date and the reason. If you are unavailable for a whole week, please make sure to include the weekend when entering your end date.

If you have a cover who can perform the tasks when you are not able to, please select the box ‘Covered by someone else’. A cover helps us to meet our target of sending a certain number of test items from your postcode area during the year in order to make our findings statistically valid.

The section ‘Person who will cover me’ opens. Please fill in the required information – Name, Phone Number and Email – and click on ‘Save’.

If you wish to add another period where you are not able to send test items, simply repeat the above mentioned procedure.

Anyone who is over the age of 18 can cover you as long as they can perform the tasks exactly as you do: receive the sending supply, sent out test items, check your mail box on a daily basis in the late evening, and enter data online. A family member, your house mate or neighbor, or someone who will feed your cat may cover you. They will need access to your house to receive the test item supply and will need to send items from the same postcode area as you do. If you are a business sender, a colleague may cover you.

It is important that they are able to receive the test item supply and they will need to send items from the same postcode area as you do. Please instruct them in detail and make sure they understand how to carry out your UNEX tasks before you go.

If you do not have a cover, please make sure to inform us about your absence at least six weeks in advance. In this way we can adjust the production of test letters and you will not receive any test item supplies when you are away.

Sending location Registration

Once you have entered your address and it has been reviewed, you can enter your sending location. In case your sending location changes or you want to add another one, please add the new sending location here as well. You can do this by clicking on ‘SENDING LOCATION REGISTRATION’ and thereupon on ‘+Add’.

Please fill in the information of the sending point you will use to post your test items – you can add several sending locations for the option Post Office, but please make sure to always stick to the induction method as specified in our cover letter. Simply fill in the description field (e.g. ‘Mailbox at the corner’; ‘Post Office near Metro Station’ or ‘Pick up by national postal service provider’) and indicate the respective post code (if you are not sure about the post code, please use your postal operators website to research).

Please also indicate the last collection time of your sending location. Usually, these times are displayed on the Mailbox or in the Post Office (please also check the ‘Possible Questions’ section below). If on a certain day (e.g. Sunday) there is no collection at all, please select the respective box. Once completed, please click on ‘Save’.

Your sending location is now submitted and will appear in the Overview under ‘Unapproved senderpoints’. We will review it shortly. Once confirmed, it will appear under ‘Approved senderpoints’ and you can use it to register items.

If you wish to add another sending location, simply repeat the above-mentioned procedure. Please keep in mind that your sending locations have to be registered and approved before you can use them. Therefore, please only send letters from sending locations that have already been approved.

Change address

If you are moving, please let us know at least six weeks in advance, so that we don’t continue sending test item supplies to your old address. It is easy to let us know by clicking on ‘CHANGE ADDRESS’ and choose if you either stay within the same country or move abroad.

In case you are moving abroad, you will need to contact us directly. If you stay within the same country, please follow the next steps. Enter the date from which your new address will be valid and your new postcode and click ‘Next’.

Please enter your new address according to the sample address on the right and click ‘Submit’. It is not necessary to enter the country name.

Please check if the new address has been entered correctly. If so, please click on ‘Confirm’. Otherwise, please click ‘Back’ and correct the new address. (If you are a business sender, this only applies in case your company is moving.)

Please note: As a sender, you may need to set up a new sending location, in case your postcode changes.


Should you have any additional questions, please check our Frequently Asked Questions:


You can also get in touch with us by sending an email to unex-panel@quotas.de We are more than happy to help! When contacting us via email, please make sure to indicate your country and your Panelist ID in the subject line. In this way your request or query can be solved and replied to more promptly.

If you prefer to contact us via message, you may also simply use the ‘My Messages’ feature. ‘My Messages’ is a communication tool to get in touch with the panel management in case you have any questions. In order to contact us via message, simply click on this feature in your panel zone and type a message. Once completed, please click on ‘SEND’.

Any new messages in your inbox, i.e. a reply from us, will be indicated by flashing of this feature and a number – of new messages – in the right upper corner of the ‘My Messages’ feature.

Last but not least, have a look at the official IPC Recommendation Letter:

Recommendation Letter

Now you are ready to start participating in our postal survey. We hope you will enjoy it!