Where it usually breaks
And how to keep it from happening.
- One side accepted as the full transfer. Inspect both directions under the same transfer before concluding that its recorded effects are complete.
- Matching amounts at the wrong facilities. Quantity equality alone is insufficient. The outbound warehouse must match the source and the inbound warehouse the destination.
- Uncertain response repeated blindly. Check whether either posting already exists and use the agreed recovery handling to avoid duplicated movement history.