We have been using Firebase for months. But we started writing user_id via setUserId () in the Android application like this:
I can see these user IDs in the BigQuery table. So it works fine. At this time, we only did this on test devices, so this field is now only set for 5-10 users (visible in the BigQuery table).
When I try to create a target audience using the user ID in Firebase Analytics, users will see some random numbers based on the user ID.
It also displays 0 results for the exact user ID displayed in the large query table. Screenshot is as follows:
Can you please tell me what the problem with Firebase is or if I am doing something wrong? I can see the right user_id in the BigQuery table.