Problem

Sending IPAWS messages in Everbridge Suite generates the error:

Invalid Polygons

You may also encounter these common error codes when uploading zone shapefiles for Wireless Emergency Alerts:

• Code 216: 'Polygon included with message is not valid' - Indicates issues with polygon formatting or structure.

• Code 607: 'Invalid value in Polygon - Contact Everbridge' - Indicates potential problems with polygon complexity or formatting or exceeds limit of 100 elements per polygon.

Root Cause

Shapes included in IPAWS messages are exceeding geopoint limits.

Solution

Send IPAWS messages with shapes that do not exceed the limitations listed below:

• For the Wireless Emergency Alerts (WEA) channel, shapes must have less than 100 geopoints.

• For the Emergency Alert System (EAS) and Non-Weather Emergency Message (NWEM) channels, shapes must have less than 200 geo-points.

For better control over the amount of points a shape has, create a polygon on the Everbridge map. See knowledge article EBS: Using Shapes to Select Contacts for a Notification in Everbridge Suite for information on creating a polygon.