1️⃣2️⃣　4️⃣5️⃣

#missing number #sequence gap #count gap #skipped number #data gap

1️⃣⬜️3️⃣

#missing information #sequence gap #incomplete series #missing step #fill in the blank #number sequence gap #data gap

📝🚫❓

#dedrocernu #unlogged #missing data #unaccounted #data gap #undocumented