Altium Designer Documentation

WorkspaceManager_Err-MissingPinFoundInComponentDisplayModeMissing Pin Found in Component Display Mode_AD

Created: August 3, 2021 | Updated: August 3, 2021
Applies to Altium Designer version: 21

Parent category: Violations Associated with Components

Default report mode:


This violation occurs if there is a different number of pins between graphical display modes for a part.


If compiler errors and warnings are enabled for display on the schematic (enabled on the Schematic - Compiler page of the Preferences dialog), an offending object will display a colored squiggle beneath it. Hovering over the object will display a pop-up hint that summarizes the violation. A notification is also displayed in the Messages panel in the following format:

Missing Pin <Identifier> in <DisplayMode> of part <PartName>


  • Identifier is used to identify the pin in question. The identifier appears in the format PartLibraryReference-Pin Designator (e.g., DIP14-8)
  • DisplayMode is the specific graphical representation mode for the part in which the missing pin has been found. A part has a Normal mode and can have up to 255 defined Alternate modes
  • PartName is the library reference for the affected part.

Recommendation for Resolution

This violation typically arises when an alternate graphical mode is defined for a component, but not all pins specified in the Normal mode have been specified for the Alternate (i.e. there must be an identical number of pins between graphical display modes).

In the source schematic library, copy the missing pins from an existing display mode into the offending display mode for the component. This can be performed directly on the schematic sheet for a part that has been placed already, but you would typically tackle the problem from within the library, then push the change across (Tools » Update Schematics).


  • Object hints will only appear provided the Enable Connectivity Insight option is enabled on the System - Design Insight page of the Preferences dialog. Use the controls associated with the Object Hints entry in the Connectivity Insight Options region of the page to determine the launch style for such hints (Mouse Hover and/or Alt+Double Click). 
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