Resolve error 0198-41-000D "Invalid class for mail piece" on the Connect+ series and SendPro P-Series

Products affected: Connect+® 500W, Connect+® 1000, Connect+® 2000, Connect+® 3000, SendPro® P1000, SendPro® P1500, SendPro® P2000, SendPro® P3000


The meter displays error code 0198-41-000D "Invalid class for mail piece" and will not print.


  • The selected class cannot be used to process this mail piece.
  • The Maximum Wow Weight Limit setting may be set too low.
  • Sometimes a software update will set the Wow Weight Limit to 0oz.
  • You may have a custom Wow Weight Limit setting.


UPDATED: December 11, 2017
To check that the Wow Weight Limit is set appropriately for class of mail:
  1. Press Home.
  2. Tap Run mail.
  3. Tap weighing options.
  4. Select WOW or WOW, first piece only.
  5. Tap edit limit.
    • The maximum limit on the Connect+ 500W-2000, SendPro P1500, and SendPro P2000 is 16oz (1lb).
    • The maximum limit on the Connect+ 3000 and SendPro P3000 is 32oz (2lb).
  6. Press OK to return to the run mail screen.
If the problem persists, try restarting the meter:
  1. Select the gear from the lower right corner of the home screen.
  2. Select Shut down from the menu.
  3. Select Shut down from the pop-up.
  4. Wait for the screen and blue light on the power button to turn off. This can take several minutes.
  5. After both the display and the blue light have been off for 10 seconds, press the power button to turn the meter back on.