Custom dimensions and metrics let you capture the extra context that default GA4 reports miss. Mastering their scopes, quotas and naming rules is essential if you want clean, trustworthy data for advanced analysis.
How many user‑scoped custom dimensions can a standard GA4 property have?
25
50
100
10
Which scope is not available when creating a custom dimension in GA4?
Session
Item
User
Event
What is the event‑scoped custom metrics quota for a standard GA4 property?
125
10
50
25
GA4 naming rules require every custom dimension name to:
Include a space between words
Begin with the prefix ga_
Start with a letter and use only letters, numbers, or underscores
Use camelCase
Which prefix is disallowed at the start of a custom parameter name?
user_
ga_
event_
page_
In GA4 360, how many user‑scoped custom dimensions can you create?
50
100
125
25
When you exceed the event‑scoped custom metrics quota in GA4 standard, you must:
Delete or archive unused custom metrics
Upgrade your Firebase SDK
Wait 24 hours for the quota to reset
Purchase GA4 360 immediately
Which scope is supported for custom metrics in GA4?
Event‑scoped
User‑scoped
Session‑scoped
View‑scoped
The June 2025 Property Syncing release lets GA4 360 users automatically copy custom definitions to:
BigQuery datasets
Subproperties
Search Console
Google Ads accounts
What is the maximum number of item‑scoped custom dimensions allowed per standard GA4 property?
50
25
10
100
Starter
Revisit GA4 custom definition quotas and naming rules to strengthen your foundation.
Solid
Good job! Deepen your mastery by exploring GA4 360 quotas and item‑scoped nuances.
Expert!
Spectacular! Your command of custom dimensions and metrics keeps your data implementation sharp.
