(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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Getting IDs by loop instead of Map(records)
SOQLs without WHERE or LIMIT outside Batch
Multiple Record Triggered Flows on same OperationType on one sObject
No assertions in Tests
No flags to deactivate trigger and validation rules declaratively
No test data factory or builder
Exactly 75% test coverage
Public Read/Write OWDs
Multiple triggers on one sObject
Using Profiles instead of Permission Sets
No Fault Paths in Flows
Hard-coded ID
Excessive amount of System.Debug()
DMLs in loop
All classes in without sharing mode
Excessive lack of .startTest() and .stopTest()
Checking collection emptiness before DML
Non‑descriptive variable names in Flow
SOQLs in loop
Missing bulk tests in test classes
Code in trigger instead of Trigger Handler
Only catching general Exception in try-catch
Hard-coded authentication instead of using Named Credentials
