Overview
In Google Analytics, "everything is an event." While page views provide the basic framework, Interaction Events—such as clicking a "Download" button, submitting a lead form, or starting a video—require specific Parameters to provide context. This check ensures that when these interactions occur, the associated parameters (e.g., file_name, link_url, method) are accurately captured and sent within the collect hit.
Why it is important
Parameters are the "adjectives" that describe a user's action. Without them, your data is flat and lacks actionable detail:
Conversion Accuracy: If a "Lead" event fires but is missing the
form_id, you cannot distinguish between a newsletter signup and a high-value demo request.Granular Ecommerce Analysis: If a
select_itemevent fires withoutitem_idoritem_name, you cannot see which products are successfully attracting attention.Better Explorations: Google Analytics' power lies in the ability to slice and dice data. Missing parameters prevent you from building deep-dive reports in the Analysis Hub/Explorations.
Implementation
Validating interaction parameters requires simulating the user journey to trigger the specific events.
We have made implementing this check simple using ObservePoint.
Create a Journey: Use Journeys to record a sequence of steps (e.g., Navigate to Home > Click 'Download PDF' > Verify Tag).
Parse the Request: ObservePoint automatically parses the Google Analytics
collecthit. Look for parameters starting withep.(Event Parameters) orup.(User Properties).Apply Tag Validations: Set rules to confirm that expectations are met e.g. the
en equals file_download, theep.file_namevariable must not be empty.Reporting: View the Tag Variables report after the Journey runs to see the exact values captured for every interaction.
Remediation
If interaction hits are missing parameters or containing incorrect data, investigate these common GTM issues:
Check Mapping: In GTM, open your Google Analytics Event tag and ensure the "Event Parameters" table has the correct Key (e.g.,
link_text) and the correct Value mapping (e.g.,{{Click Text}}).Fix Timing/Race Conditions: If your parameters are pulled from the Data Layer, ensure the
dataLayer.pushhappens before the GTM trigger fires. If the tag fires too early, the variables will be sent asundefined.Standardize Naming: Google Analytics is case-sensitive. Ensure your parameters match the naming convention in your Solution Design Reference (SDR). For example,
file_nameis not the same asFile_Name.Review Enhanced Measurement: If you are using Google’s "automatic" tracking (Enhanced Measurement), confirm it isn't conflicting with or double-tagging your custom GTM tags.
Conclusion
Interaction parameters turn generic "hits" into meaningful business intelligence. By ensuring your Google Analytics Tags capture these details accurately, you empower your team to optimize user experiences and calculate true marketing ROI. Regular testing with ObservePoint Journeys ensures that your most critical conversion paths are always recorded with the full context needed for analysis.